In daily life and work, the use of letters of guarantee is growing. A valid letter of guarantee can only be disposed of based on the things that you have the right to dispose of, and cannot infringe on the legitimate interests of others. So how is a letter of guarantee usually written? Below are 9 quality assurance documents that I compiled. I hope it will be helpful to everyone. Quality Assurance Letter 1

First, indicate the geographical location and building area of ??the commercial housing. The development company will make the following quality assurance for the commercial housing sold:

1. This commercial housing project It has been completed and accepted, and it complies with Tianjin residential construction design standards. The quality of the project is qualified, and the company is responsible for the warranty. The completion acceptance date of the project is ××year××month××day.

2. The building number where this commercial residential building is located has obtained the "×× City New Residential Commercial Building Permit" in accordance with regulations, and the certificate number is ××××.

3. The foundation and main structure of this commercial residential project are guaranteed within a reasonable service life.

4. From the date of acceptance of this commercial residence, our company’s warranty period for the roof waterproofing project, toilets, rooms and exterior walls with waterproofing requirements to prevent leakage is 5 years. If the project has been completed and accepted for more than two years when it is delivered for use, the warranty period for the above waterproofing and anti-leakage projects is 3 years from the date of issuance of this warranty.

5. From the date of issuance of this warranty, under normal use by the home buyer, if this commercial house has the following engineering quality defects, the company will provide free warranty for the following period:

1. Heating or cooling system, for 2 heating or cooling periods;

2. Electrical pipelines, water supply and drainage pipes, for 2 years;

3. Wall , the plaster layer on the ceiling fell off, it took 1 year;

4. The ground was hollowed out and cracked, and there was sand in a large area, it took 1 year;

5. Doors and windows were cracked, and hardware was damaged. , for 1 year;

6. Pipe blockage, for 2 months;

7. Sanitary ware, for 1 year;

8. Lamps and electrical appliances switch, for 6 months.

6. After the commercial housing is delivered for use, if the buyer believes that the quality of the main structure is unqualified, he may entrust a project quality inspection agency to re-verify it in accordance with relevant regulations. After verification, if the structural quality is indeed unqualified, the home buyer has the right to check out; if losses are caused to the home buyer, the company shall bear the liability for compensation according to law.

7. If users of this commercial residential property receive letters or visits due to quality problems after moving in, the company will directly or entrust the property management company to send personnel to reply and inspect the property within 3 days.

8. From the date of delivery of this commercial house, if the user adds or changes the facilities and equipment by himself, or if the quality problems are caused by the user's improper use or unauthorized modification of the structure, they are not covered by the company's warranty. Within the period, the user shall bear the responsibility for maintenance; if it causes losses to others, the user shall bear corresponding liability for compensation in accordance with the law.

9. Other contents of the company’s quality assurance.

10. This letter of guarantee will be issued by the development company to the home buyer when the commercial house is delivered for use.

11. This guarantee is an attachment to the commercial housing sales contract and has the same legal effect as the contract. Quality Guarantee Part 2

1 In accordance with xx "Quality Insurance Measures for Housing Construction Projects" and "Construction The relevant contents in the Engineering Quality Management Regulations are subject to warranty.

2 This project is under the supervision of the Municipal Quality Supervision Station, the Municipal Safety Supervision Station and the Xuchang Safety Administration Bureau. During the construction, the mandatory standards for project construction are strictly implemented, with safe production, civilized construction, a century-old plan, and quality first.

3 Ensure the implementation of the building materials certification system of the superior department, and strictly enforce the procedures for building material procurement, product certification, and re-inspection reports to ensure that the qualified rate of building materials used reaches 100%.

4 After completion, the project will be approved as a qualified project by the construction, survey, design, supervision, construction party acceptance, and quality supervision departments in accordance with the regulations of the Ministry of Construction (xxxx) No. xxx.

5 When using the construction project, users who have passed the acceptance inspection are required to submit the "Construction Project Warranty Letter" and "Construction Project Instructions" to the user, so that the user can understand the matters that should be paid attention to during use and find problems in a timely manner. Give us feedback.

6 For the construction products constructed by our company, during the warranty period and if there are any problems with project quality caused by construction reasons (except for man-made and unforeseen natural disasters), our company guarantees to be on call. Arrive on time, deal with it in a timely manner, and conduct a return visit to the project after the project is delivered for use to observe and inquire about the situation of the project during its use.

7. If users have technical problems or quality problems that require construction clearance during use, they can directly feedback to our company or call for consultation. We will reply within x days after being connected and conduct Maintenance processing. Guaranteed to achieve user satisfaction. Effectively improve the quality of construction products and implement the service quality and level after the construction products are delivered for use.

Contact person: xx branch of xxxx Construction Engineering Co., Ltd.

Project manager: xxx

Quality assurance letter 3 on xx, month xx, 20xx

Quality acceptance:

Construction unit: Hegang Longyu Real Estate Development Co., Ltd.

Design unit: Hegang Architectural Design Institute

Supervision unit : Hegang Xinghe Construction Supervision Co., Ltd.

Construction unit: Hegang Zhucheng Construction Engineering Co., Ltd.

This project has been evaluated as qualified by five parties and has been installed in Hegang City Quality supervision station registration.

Our company and the property management company conducted handover and acceptance.

Quality Assurance:

Hegang Zhucheng Construction Co., Ltd. is responsible for the quality assurance of Building C1, Group C, Longyu Garden Community, Hegang City. The company carried out construction in compliance with current national standards and specifications, and passed the "Construction Quality Acceptance Specifications for Building Energy Saving Projects" and the completion acceptance and assessment of the quality of various projects. The quality met the requirements of the national acceptance specifications and was approved for delivery.

Hegang Longyu Real Estate Development Co., Ltd. promises to abide by the national construction project warranty regulations and Hegang City building decoration management regulations, and assume warranty obligations during the warranty period.

When the owner checks in, the company will issue this quality guarantee letter, and the owner will use this quality guarantee letter to declare the warranty project.

Identification of warranty liability:

● Potential quality and safety hazards identified by the national quality inspection department as caused by design reasons.

● Identified by the national quality inspection department as hidden quality hazards caused by construction reasons.

● Other quality responsibilities of construction units as stipulated by the state.

Exemption from warranty liability:

● The owners/residents modify pipelines without authorization, dig into walls, boards, columns, improper exterior walls and improper decoration

housing quality issues.

● House quality issues caused by improper construction of structural beams by owners/residents during decoration.

● Improper use by owners/residents that exceeds the design permission (such as exceeding the design load of the floor or roof). ● Quality problems caused by unauthorized modifications, disassembly and assembly of decoration parts, items and equipment by owners/residents, quality problems caused by incorrect use by owners/residents without following the construction instructions or operation and maintenance guidelines of decoration equipment and materials.

● Quality problems arising from owners/residents’ modifications and related parts.

● Problems such as contamination, bumps, scratches, breaks, etc. that occur after delivery.

● It is due to the owner/resident’s personal habits and preferences, etc., and is not a product quality issue.

● Housing quality problems caused by improper use by owners/residents who fail to follow the "Residential Instructions for Use" (such as blockage and water accumulation caused by failure to clean floor drains).

● Natural wear and tear.

● The occurrence of force majeure events beyond the design allowed, such as earthquakes, fires, typhoons, wars, etc., causing quality damage.

Basic technical information:

● Structural form

The main body of the residential building C2 in Group C of Longyu Garden Community is a brick-concrete structure: the engineering grade is Level 2; The design reasonable use life is 50 years; the land use life is 70 years; the seismic fortification intensity is 8 degrees.

● Energy-saving measures:

Regional central heating, circulating geothermal water and gas boilers are used as heat sources;

● Structural thermal index:

< p>This project adopts a paint-finished exterior wall external insulation system, and the insulation material is 80-thick EPS board (λ=0.042W/(m.K), ρ≥18kg/m3). The roof insulation uses 80-thick extruded polystyrene board, and the heat transfer coefficient should not be greater than 0.6W/㎡.K. The window air tightness level is level 6, the wind pressure resistance level is level 4, the thermal insulation performance level is level 8, the water tightness level is level 3, the air permeability level is level 4, the air sound insulation performance level is level 3, and the lighting performance level is level 3. Except for the south-facing windows, which are single-frame double-glass plastic-steel windows, the other windows are single-frame triple-glass-reinforced plastic windows. The balcony door uses plastic steel doors, and other interior doors use panel doors.

Warranty scope:

Note:

1. The warranty period starts from the date when the customer formally checks in or obtains the check-in notice in accordance with the relevant provisions of the purchase contract. .

2. The response time limit refers to the latest time for the customer service center or designated contact unit of Longyu Real Estate Development Co., Ltd. to give a reply from the date of receiving the written notice from the owner/resident.

3. The processing time limit refers to the latest time to start relevant warranty activities with the cooperation of the owner.

4. Warranty items are items covered by the warranty within the warranty period.

5. Due to different production batches of stone, ceramic tiles, paints and other products, the color cannot be guaranteed to be completely consistent with the raw materials during warranty replacement.

Warranty procedures:

1. Failures caused by quality problems should be reported for repair in time, and the company will deal with them within the prescribed time limit. Our company is not responsible for compensation if other losses are caused by delays in declaration by the owner.

2. The company’s customer service center is responsible for the quality warranty of the house. Customer service hotline: 0468-8923444

3. Within two months before the expiration of the warranty period, the owner is requested to report the expiration of the warranty period. Return the confirmation letter and problem registration form before the warranty expires to our customer service center, and our company will arrange for processing. Failure to return this form means that the owner determines that there is no problem and the warranty period will end on time.

4. After the warranty period expires, the company will hand over the project to the property management company. If any problem occurs, the property management center will handle it in accordance with the "Property Management Regulations".

5. The owner has the right to supervise the construction process of the warranty project. If the construction unit personnel violates regulations and disciplines, the owner can complain to the company's customer service center.

6. The owner provides support for the construction of the warranty project. If the construction period is extended due to the owner's reasons, the owner himself will be responsible.

7. For items that exceed the specified period or exceed the warranty scope, the company can provide maintenance services within its capabilities and charge cost and labor fees in accordance with regulations.

Important tips for decoration:

★The walls and ceiling of the decoration room have been scraped with water-resistant putty or roughened, and the floor is a protective layer for floor heating. Lamps, switches and sockets, weak current plug-in boards, etc. have all been installed. If any adjustments are needed, approval from the property management center must be obtained, and on-site confirmation must be done before adjustments can be made before construction can begin. All adjustments to the existing decoration that are not approved by the Property Management Center will be the owner/resident's responsibility for any damage to the finished decoration.

★Choose a formal company, sign a formal contract, and clearly stipulate: cost, construction period, materials, quality standards and warranty period.

★Go through the approval procedures and obey the management. You cannot pay the deposit on behalf of the decoration company.

★Entrust a professional company to inspect and accept the decoration project.

★To ensure the cleanliness of the building’s exterior facade, no decoration or any construction on the roof is allowed.

★The housing structure cannot be modified arbitrarily. The load-bearing type of the building is determined by calculations by the structural designer. The load-bearing structure cannot be damaged and the floor load must not be exceeded.

★ Construction regulations must be followed when opening walls and holes. No holes are allowed in load-bearing walls. Openings in non-load-bearing walls (no holes larger than 70 cm) must be reinforced.

★Gas pipelines must not be arbitrarily modified. If modifications are necessary, personnel from the gas supply unit must be dispatched to operate them.

★The hidden place of the circuit must be piped.

★The use of flammable or flammable decorative materials must be fireproof.

★The kitchen and bathroom decoration must be carried out in accordance with the specifications to prevent damage to the completed waterproofing layer. If water leakage occurs and affects the downstairs, you will be held responsible.

★Before the completion acceptance, pressure tests and water filling tests have been carried out on water supply and sewer pipes. Owners/residents are requested to ensure that there is no damage to the pipes during decoration, otherwise there will be endless trouble.

★Do not drill holes or hit hard on the bay window floor.

★Please refer to the international "Construction and Acceptance Specifications for Building Decoration Projects" for the completion acceptance of home decoration projects.

Note: Longyu Real Estate Development Co., Ltd. is responsible for the interpretation of this book and has the right to make amendments. If there are any matters not covered in this book or if the owner/resident thinks there are any issues that require further explanation, please call Longyu Real Estate Development Co., Ltd. Corporate customer service center or property management company. Quality Assurance Chapter 4

Dear users:

Thank you for purchasing the printing supplies produced by our factory. Your small cooperation means that we are moving towards a cleaner and better world. The environment has taken another step forward. Here, xxx office supplies factory promises you the following guarantees;

1. xx office supplies factory guarantees that the quality of all environmentally friendly toner cartridges and printing supplies sold are in good condition, and the number of prints and The quality can reach the effect of the original toner cartridge, and there will be no unclear printing, uneven graphics, powder leakage, bottom dust, etc.;

2. The service life of the fully regenerated toner cartridge in the environmentally friendly toner cartridge is equivalent to the original one Toner cartridge;

3. As a developing device, the toner cartridge is only in contact with the printing medium and has no direct relationship with other structures in the printer. In other words, the toner cartridge cannot damage the printer. Therefore, use environmentally friendly toner cartridges. It has no impact on the printer, just like using the original one, so there is no such thing as damage to the printer. If the printer is damaged due to the use of our environmentally friendly toner cartridges, our factory will compensate according to the price;

4. Your company As long as the printer uses our products, it can receive regular maintenance and repairs from our professional technicians.

This can slow down the aging of the consumable parts in the printer and extend the service life of the printer; (This clause Only applicable to the central area of ??Huicheng District. If the quantity is large, it can be considered to meet customer needs.)

5. The warranty period is until the toner is used up. After the toner is used up or the user uses it improperly (improper storage) The warranty period will automatically expire if the photosensitive drum gets damp, the photosensitive drum is exposed, the photosensitive drum is scratched by external force, or substandard printing media is used, etc. After confirmation by the factory, maintenance fees will be charged depending on the specific situation;

6 , Our factory promises that every environmentally friendly toner cartridge will have a lifetime warranty during the normal use cycle. If there are any quality problems, customers can ask our business department to repair, replace or return them for free;

Special Advice:

In order to ensure your consumer rights and better enjoy our services, please do not disassemble the toner cartridge by yourself and touch the photosensitive drum and electrode with your hands;

Please use standard products Printing media, thick printing media or media with special surfaces may cause printing failures;

If you do not have the corresponding maintenance conditions, do not try to repair the three drums and the printer yourself, and do not add other toners by yourself (After testing, most commercially available toners are too coarse, contain too much iron and resin, and contain impurities, which can easily damage the drum core);

Please put the empty toner cartridge into the toner cartridge after using up the toner. It is packed in black to prevent the photosensitive drum core from being exposed and the toner cartridge from getting damp. Keep it properly for reprocessing next time. Regardless of price, quality, or service, we will give you absolute confidence so that you can feel confident in your daily work. , satisfactory use, happy at work.

The quality guarantee period starts from the date of purchase and lasts for three years (based on the purchase invoice date).

The quality guarantee letter is deemed valid after the user fills out the user registration card and mails it to our company.

During the quality guarantee period, if the instrument fails during normal use, our company will be responsible for providing free maintenance services with the product warranty card. However, damage caused by floods, fires, earthquakes or other disasters will not be covered. covered by this warranty.

During the quality guarantee period, if one of the following situations occurs, our company will charge material fees and maintenance fees depending on the situation.

Failure to produce the product warranty card or inconsistent with the content of the product warranty card;

Damage caused by failure to follow the working procedures and environment indicated in the user manual;

Unauthorized disassembly and expansion , Damage caused by modification;

Damage caused by repairs not performed by our company’s technical personnel.

This quality guarantee is only applicable to mainland China.

Precautions

Correct use and proper maintenance will help extend the service life of the instrument. Please use it strictly in accordance with the methods in this manual. When the power supply in the working environment is unstable, please install a voltage stabilizer and the power supply should be reliably grounded.

The instrument and environment should be kept clean and dry at all times.

If something abnormal happens to the instrument, please contact the dealer or our company in time. Quality Assurance Part 5

Dear users:

Thank you for choosing the processed glass products (referred to as products) produced by Jinhua CSG Tempered Glass Co., Ltd. The processed glass products produced by our company mainly include: ：

1. Tempered glass (executive standard: gb15763.2-20xx);

2. Laminated glass (executive standard: gb9962-1999);

< p>　3. Insulating glass (implementation standard: gb/t11944-20xx);

4. Fire-resistant glass (implementation standard: gb15763.2-20xx);

Manufacturer Ensure that its products pass the inspection according to the above quality standards, and ensure that under normal construction and maintenance conditions specified in the attached instruction manual, the product will not have quality beyond the standard from the date of production to the shelf life specified in the national standard. question. During use, the technical processes and operating procedures specified by our company should be followed. If quality problems occur, our company will only bear corresponding responsibilities other than implementing standards. If it is confirmed that there are unqualified products outside the standard that are the responsibility of the manufacturer, the manufacturer will provide the same number of qualified products. If the product violates the manufacturer's relevant regulations and requirements during installation and use, such as during transportation, loading, unloading, and installation. Damage in the product, deterioration caused by unqualified storage, corrosion caused by splashing of acid and alkali substances, scratches on hard objects, etc., the product quality guarantee will be invalid. Manufacturers have the right to conduct on-site inspections of products deemed to be substandard.

The buyer’s compensation is limited to the limited reasonable compensation stipulated in this warranty. The manufacturer is not responsible for the handling, disassembly, installation, replacement, reprocessing or any other aspects of unconformed products that have not been confirmed by it. cost.

The manufacturer has no other guarantees, representations or acquiescence other than the above, nor does the manufacturer authorize its employees, agents, or wholesalers to modify or interpret this warranty.

This guarantee is invalid if it is not stamped by Jinhua CSG Tempered Glass Co., Ltd., and is invalid if it is altered or copied. The right to modify and interpret this warranty belongs to Jinhua CSG Tempered Glass Co., Ltd. Order number: Glass type: Quantity:

Jinhua CSG Tempered Glass Co., Ltd.

Year, month and day Quality Assurance Book Part 6

Dear buyer partners: < /p>

I am very happy to have the opportunity to conduct business cooperation with your company. I hope that both parties can cooperate for a long time based on the principles of "integrity and mutual respect, equality and mutual benefit, hand in hand for progress, and sincere cooperation".

Our company can promise and guarantee.

1. Our company’s principles are: integrity and mutual respect, equality and mutual benefit, hand in hand for progress, and sincere cooperation;

2. Our company has passed the iso9001 (xx version) quality system Certification.

The product complies with Sonyss00259 and EU Rohs environmental directives.

3. Our company has a group of professional technicians in production and R&D, who can provide customers with complete services and technical support.

4. Your company must conduct in-factory inspection and judgment on the products provided by our company. They can be produced and used only after passing the iqc random inspection.

5. If your company must conduct random inspections before using our products on the machine, and if you find any substandard products, please contact the person in charge of our company as soon as possible to solve the problem.

Without the consent of the company, the consequences caused by your company’s listing of our company’s products have nothing to do with the company and will be borne by the company itself.

6. It is confirmed by both parties that the defective materials are the responsibility of the company, but the company failed to deal with them within the specified time, resulting in your company's special procurement and full inspection of the defective materials, or the company entrusted the company due to special reasons When your company specializes in full inspection and obtains approval from our company, the on-line and off-line full inspection OEM fees will be calculated as normal; your company will issue a "Penalty Notice" and fax it to our company for approval, and the penalty will be included in the monthly payment. deduct.

7. The company will strictly strengthen quality management, and the warehouse strictly implements the "Double Inspection and Inspection" system.

8. Matters not covered in this agreement shall be resolved by both parties through negotiation. If the negotiation fails, the matter shall be submitted to the local court to file a lawsuit, which shall take effect after being signed and sealed by both parties.

Two copies,

Both Party A and Party B shall each hold one copy.

Finally, I wish both of us:

Sincere cooperation!

Party A (seal):

Party B (seal):

Party A’s representative:

Party B’s representative:

p>

Date:

Date: Quality Assurance Book 7

Our company promises that the foot bath products produced by our company comply with national laws and regulations and relevant government standards, and will provide Agents and distributors provide quality-related and marketing-related certification documents (including business license, organization code certificate, tax registration certificate, product testing report, China Ping An Insurance Certificate, etc.). If the validity period of the aforementioned certification documents has expired, our company guarantees to notify agents and distributors 30 days in advance and update relevant materials in a timely manner.

Our company ensures quality control in all aspects of product production, strictly controls product quality, and ensures that the products delivered to consumers are safe and trustworthy.

The quality guarantee period of our production starts from the date of purchase and lasts for one year (based on the purchase invoice date). During the warranty period, if there is a fault that is not caused by the user, it will be repaired free of charge. If the warranty period exceeds the warranty period, only the maintenance material fee will be charged and the user will be responsible for maintenance for life.

During the quality guarantee period, if the product fails during normal use, our company, agents and distributors will be responsible for providing free maintenance services with the product warranty card and purchase invoice. However, due to floods, fires, Damage caused by earthquakes or other disasters is not covered by this warranty.

During the quality guarantee period, if one of the following situations occurs, our company will charge material fees and maintenance fees as appropriate:

1. Failure to produce the product warranty card or contact with the product The contents of the warranty card do not comply with the requirements;

2. Damage caused by failure to follow the working procedures and environment specified in the product instruction manual;

3. Unauthorized disassembly, expansion, or modification of the product.

4. Damage caused by repairs not performed by our company’s technical personnel, agents and distributor maintenance personnel.

If consumer complaints are indeed caused by product quality problems, our company promises to cooperate with agents and distributors to handle them properly, and our company will be responsible for the resulting compensation costs to consumers.

xxx Co., Ltd.

Quality Assurance Book 8 on October 22, 20xx

In order to further strengthen the sense of responsibility of the construction workers and successfully complete the project construction Tasks, this letter of guarantee is specially formulated:

1. Responsible for the construction of.

2. Strictly follow the division of labor, do a good job in the construction of the projects you are responsible for, and deal with problems that affect the quality of the project that arise during the coordination work.

3. Construction personnel must strictly implement the relevant regulations on project construction quality management, obey on-site supervision and management, do a good job in project construction quality management, pay close attention to the quality of the project, and be responsible for the quality of the project. If a quality accident occurs due to construction reasons, the construction party will be held legally responsible.

IV. The construction party shall provide the construction technology and construction schedule

V. Party A shall notify Party B of the start time of the sub-projects 3 days in advance. The construction party (Party B) shall not use any Give excuses.

6. The on-site person in charge must be on-site and responsible for on-site management every day. (If you are not on site, you will be fined 1,000 yuan/day, and the contract will be automatically terminated if the total reaches 7 days)

7. If the construction party (Party B) cannot complete the construction within the specified time limit, a penalty of 1% of the total contract price will be charged for each day of delay. %fine.

If Party B fails to fulfill the above requirements, Party A has the right to terminate the contract, and Party B shall bear the losses. There are two copies of this responsibility letter. The construction unit and the person in charge of the construction shall each hold one copy and report it to the company for record.

Signature of the promisee (stamped)

Signature of the guarantor:

Signing date: Year, month and day Quality Assurance Letter Part 9

Dear Customers:

First of all, thank you for choosing our products! In order to ensure product quality, clarify the product quality responsibilities of both buyers and sellers, ensure product quality is qualified, and ensure product safety, the following guarantees are made:

1. The supplier shall provide the buyer with production documents stamped with the official seal of the supplier. Copies of licenses and business licenses.

2. The supplier shall provide the buyer with a copy of the product standards stamped with the official seal of the supplier.

3. The supplier guarantees that the products supplied meet legal quality standards and is responsible for product quality. If necessary, it will provide the purchaser with necessary quality information, such as product inspection reports and other relevant information.

4. The supplier’s product packaging, registered trademarks, etc. comply with relevant national regulations.

5. The purchaser shall store the product strictly according to the storage conditions indicated on the product packaging. The purchaser shall be responsible for product quality problems caused by the purchaser's improper storage and maintenance of the product.

6. When consumers complain about product quality issues, the supplier should actively cooperate and properly resolve the complaint. If it is indeed the supplier's responsibility, the supplier shall bear all responsibilities and expenses.

xxx Co., Ltd.

1. The bidder (guarantee or not) provides products that are produced by the original factory, comply with the quality inspection standards of the country, industry and producers, and are unused. The brand-new goods are accompanied by a formal quality guarantee or certificate of conformity and a packing list, and relevant information and tools are delivered to the user.

2. (Free or not) Delivery, on-site installation and debugging, (Free or not) Provide usage and operation training of the goods.

3. Failure due to non-user human causes occurs within (time) from the date of acceptance (whether you agree or not)

Unconditional (return/exchange).

4. The warranty period of this project is: . (Do you agree or not) Requirements for this warranty: During the warranty period, faults that are not caused by the user will be repaired free of charge. If the warranty period exceeds the warranty period, only the maintenance material fee will be charged and the user will be responsible for maintenance for life.

5. (Do you agree or not) Free door-to-door service. The specific period of free door-to-door service is (time); the time limit for arriving at the service site is (hour).

6. The product name and scope of the "Three Guarantees" and the specific commitments of the "Three Guarantees":

7. The goods (whether guaranteed) are in original packaging and intact (whether Agree) Under the on-site supervision of the user unit, the package will be unpacked and installed on the spot.

8. Other preferential conditions, after-sales service measures or matters that need explanation:.