As society continues to progress, letters of guarantee are used more and more frequently. Letters of guarantee are actually a type of contract and also have legal effect. Do you know how to write a letter of guarantee so that it can be written well? The following is the material quality guarantee certificate I collected for everyone. It is for reference only. You are welcome to read it. Material Quality Guarantee 1

xxxx Co., Ltd.:

As the supplier of your company’s xxx goods, our company, in order to ensure the quality and safety of the products supplied by our company, hereby makes a special request to your company. We make the following commitments:

1. Commitment regarding our business qualifications

We promise to provide your company with legal and valid business licenses, tax registration certificates, business production licenses and other necessary Documents.

2. About our commitment to supply goods

1. All goods supplied by our company have qualified "Quality Inspection Reports" and relevant product certificates, and comply with relevant national regulations. regulations; and ensure that all required external inspection reports, certificates, special raw material manufacturer production certificates and other documents are provided in a timely manner, and ensure that all documents are authentic, legal and valid.

2. After all the goods supplied by our company are confirmed by your company in writing, the manufacturer, formula, production process, etc. related to the performance and quality indicators of the designated goods will not be changed at will, such as If there is a replacement, our company will notify you in writing at least x working days in advance before the replacement.

3. The shelf life of the goods supplied by our company will never be lower than the shelf life marked on the product (calculated from the production date marked on the product). If your company's product quality problems or adverse effects are caused by quality problems in the products we supply, we will voluntarily bear compensation for x times the price of the goods and bear all losses and legal liabilities caused thereby.

4. Our company recognizes your company's goods acceptance system and warehouse storage conditions, and voluntarily strictly abides by your company's goods acceptance system when inspecting the supplied goods.

5. For goods that fail to pass the acceptance inspection, our company guarantees to replenish qualified goods within the time specified by your company, otherwise it will voluntarily bear all losses caused thereby.

6. Our company promises to return the goods unconditionally and return the goods within the time specified by your company if the relevant certificates and licenses are incomplete, the brand is inconsistent, or there are any quality problems before your company puts the goods into use. Replenish qualified goods, otherwise we will voluntarily bear all losses caused thereby.

7. Our company promises never to add additives other than those specified by laws and regulations, and guarantees that additives will be used within the scope permitted by the country and will not be used in excess or beyond the scope. Otherwise, our company will voluntarily bear the responsibility for the We will compensate you x times the price of the batch of goods and bear all losses and legal liabilities caused thereby.

8. Our company promises to strictly abide by the national management regulations on labeling and identification, and ensure that the outer packaging of products meets the requirements.

9. Our company promises to abide by the provisions of the contract and will never add substances that your company specifies as not to be added or contained. Otherwise, we will voluntarily bear all losses and legal liabilities caused thereby.

10. Our company promises to strictly abide by relevant national laws and regulations, and guarantees their timely implementation, without further notification from your company.

11. Our company is willing to use x_% of the payment for the goods supplied as a rolling quality deposit at the monthly checkout, which will be settled at the next checkout.

In order to jointly ensure quality and safety, our company has made the above commitment to your company and is willing to abide by it; this commitment letter is valid during the supply period of our company and within one year after both parties terminate the cooperation.

xxx

Material Quality Warranty 2 on xx, xx, 20xx

1. Scope and content of project quality warranty

The contractor is During the quality warranty period, we shall assume the quality warranty responsibility for this project in accordance with the management provisions of relevant laws, regulations, and rules and the agreement between the parties.

The quality warranty scope covers the flat roofs, sloping roofs and gutters of the 1#, 2#, 3# and 4# floors of Baiyin Tongcheng International Hotel.

(Damages caused by construction quality will be repaired free of charge by the construction party)

2. Quality warranty period

The two parties agreed on the quality of this project in accordance with the "Construction Project Quality Management Regulations" and relevant regulations. The quality warranty period is as follows:

1. The project quality warranty period is five years.

2. The quality warranty period shall be calculated from the date when the project is completed and accepted.

3. Quality warranty responsibility

1. For items that fall within the scope and content of the warranty, the contractor shall send someone to perform warranty within 7 days from the date of receiving the warranty notice.

2. In the event of emergency repairs, the contractor shall immediately arrive at the site for emergency repairs after receiving the notice.

IV. Warranty expenses

The warranty expenses are borne by the party responsible for the quality defect.

5. Others

This project quality warranty is valid until the expiration of the warranty period.

Contractor (seal): Contractor (seal): Representative (signature): Representative (signature): Time: Time: Material Quality Guarantee 3

Produced by our company From design, production, testing to product packaging, transportation and after-sales service, product quality is strictly inspected in accordance with national standards, industry standards and enterprise standards. Unqualified products will never leave the factory. Relevant experts are invited from time to time to the company to supervise and guide the work and strictly control quality.

1. Raw material procurement

In order to ensure the quality of raw materials, our company purchases from qualified suppliers who have been strictly reviewed. The raw materials entering the factory can only be put into the warehouse after passing the inspection to ensure that the pass rate of the goods is 100%. All major materials will be given priority to purchase high-quality products from national key and designated enterprises, and a layer-by-layer inspection and review system will be implemented.

2. Production

In order to ensure product quality, all aspects of production are strictly controlled. A quality tracking card system is implemented during the tooling process. When quality problems occur, the team and team can be traced. Individuals, and take corrective and preventive measures in a timely manner to achieve a 100% pass rate for the next product. At present, our company has introduced advanced equipment and production technology, laying a solid foundation to ensure the production of high-quality products.

3. Inspection

The company strictly controls the inspection of products to ensure that uninspected products are not put into use and leave the factory. Technical personnel from the Quality Inspection Department will conduct quality inspections on the production processes and finished products in strict accordance with the product's technical terms, design drawings, relevant standards and quality specifications. After passing the inspection, corresponding inspection reports and related records will be issued.

4. Control of unqualified products

To control unqualified products, our company implements a three-inspection system (self-inspection, mutual inspection, and special inspection) to prevent unqualified products. Take effective corrective and preventive measures to eliminate actual and potential non-conforming factors and prevent similar quality problems from occurring.

5. Packaging and transportation

Control all aspects of handling, packaging and delivery that affect the quality of the product during the molding process to prevent product damage. After the final acceptance of the product, it shall be inspected according to the requirements. Sign the contracted transportation method and relevant requirements, package and protect the products, and ensure that the products are transported to the destination intact.

6. The company guarantees to provide new products that meet relevant standards and meet the provisions of the bidding documents, bidding documents and technical agreements. The shelf life of this product is two years.

xxx

Material Quality Guarantee 4 on xx, xx, 20xx

In order to strengthen the management of raw materials entering the construction site of the company and strengthen quality control, To improve the code of conduct for the use of materials and ensure the quality of the project, this letter of commitment is specially formulated in accordance with relevant national regulations and standards:

1. Raw materials used at the construction site: such as steel bars, cement, gravel, and sand for Admixtures used in structural concrete must, in addition to having certificates and test reports, be sampled and sent to the testing center for re-inspection before they can be used.

2. When sampling, three parties (the builder, the supervisor, and the construction team members) must take samples and send samples for testing at the same time.

3. If the raw materials that must be re-inspected according to the above regulations are used without re-inspection, the company will be fined not less than x yuan but not more than x yuan for each discovery. Construction has been suspended and can only be resumed after passing the re-inspection.

4. Materials must be inspected and re-inspected before being allowed to be used. If materials of other types and specifications are used during actual construction, or materials of other types and specifications are used at will, once found, they must be replaced with the same ones as the original samples unless ordered to do so. In addition to raw materials and semi-finished products, a fine of x% of the company's partial cost will be imposed.

5. If substandard materials, semi-finished products, or equipment are found to cause engineering defects or accidents, the company will be fined not less than x yuan but not more than x yuan, in addition to resolute rework.

Keep this in mind and be flawless!

Please rest assured, leaders of your organization!

xxx

20xx Material Quality Guarantee 5 on xx, xx

Shangyu Jincheng Lighting Electrical Co., Ltd.:

As a supplier of plastic accessories for your company, we make the following guarantees to your company: < /p>

1. Guarantee about our business qualifications

We guarantee that the business license and business and production license provided to your company are true and valid.

2. Guarantee about the goods supplied by us

1. The supplied goods have qualified "Quality Test Reports" and relevant product certificates, and comply with relevant national regulations.

2. The supplied goods will not be replaced at will after your company confirms the supply brand in writing.

3. The shelf life of the supplied goods shall not be less than 2 years, calculated from the date when the goods are inspected by your company and placed in the warehouse.

4. We recognize your company’s goods acceptance system and strictly abide by your company’s goods acceptance system when inspecting the supplied goods.

5. For goods that fail to pass the acceptance inspection, ensure that qualified goods are replenished within the time specified by your company.

6. If the goods that have passed the acceptance have incomplete relevant certificates, brand inconsistencies or quality problems before they are put into use by your company, we are guaranteed to return them unconditionally and replenish them with qualified goods within the time specified by your company.

7. If the quality of the goods we supply has a negative impact on your company, we are willing to bear a fine of 1-10 times the price of the goods and bear the resulting consequences. Economic losses and legal liability.

8. We are willing to use 30% of the payment for the goods supplied as a rolling warranty deposit for monthly settlement, which will be settled at the next settlement.

Supplier: Yuyao Hongxing Longma Electric Co., Ltd.

Signature of the person in charge:

Material Quality Guarantee Letter 6 on October 21, 20xx

Dear customer:

First of all, thank you for choosing to purchase our products!

In order to ensure product quality, we clarify the product quality responsibilities of both buyers and sellers, ensure product quality, and ensure product safety. The following guarantees are made:

1. In principle, the quality of the products provided by our company shall be implemented in accordance with the technical standards specified by the purchaser. When the buyer does not have technical standards specified by the buyer, our company will implement it in accordance with the current national standards and provide product samples to the buyer. After the buyer agrees, we will provide the product to the buyer and ensure the stability and gradual improvement of product quality. .

2. The supplier shall provide the buyer with a copy of the production license and business license stamped with the official seal of the supplier.

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

4. The supplier guarantees that the products supplied meet the 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.

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

6. 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.

7. 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.

8. Handling of quality disputes (issues):

The purchaser should inspect the supplier’s products in strict accordance with the established technical standards to ensure the fairness and scientific nature of the inspection. , the remaining samples that fail the inspection should be retained for one week.

Our company will be responsible for any losses caused by the use of the product if it is indeed a quality problem with the supplier.

If the product is not used due to the supplier’s production quality problem, it will be resolved through negotiation between the supplier and the buyer (return or price reduction).

9. This product quality guarantee shall take effect when the supply contract is signed by both parties and shall be terminated when the business is terminated.

xxx

Material Quality Guarantee on xx, xx, 20xx 7

In order to create a good food safety consumption environment, our company solemnly promises to strictly implement the grain, oil and food regulations Access system, strictly control food quality, carefully handle consumer complaints, establish a social and moral image of honesty and trustworthiness, and ensure the safety of people's consumption of grain, oil and food.

1. Incoming goods inspection and review system

(1) The company strictly follows the provisions of the "Product Quality Law", "Food Hygiene Law" and other laws, strictly controls the purchase of goods, and resolutely Prevent "Three Nos" products from entering the company;

(2) The company collects relevant important information on distributed food in a timely manner and establishes purchase ledgers according to product categories;

(3) The purchase ledger records information such as product variety, purchase date, supplier, purchase and sale voucher number, quantity, shelf life and other information. The content is authentic, reliable and well-documented, and is subject to inspection by the industrial and commercial, food, pharmaceutical and food supervision departments.

2. System for removing unqualified products from the counter (removal from the shelves)

(1) The company strictly controls quality and proactively removes expired and spoiled food from the shelves in a timely manner;

(2) The company will first take off the counters (off the shelves) the important foods that have received a lot of public feedback and complaints, and then submit them to the relevant departments for identification. Foods that pass the identification will be put back on the counters (on the shelves) Sales of food identified as unqualified will be stopped immediately;

(3) The company will promptly recover unqualified food, counterfeit and shoddy food that have been sold, and notify suppliers and industry and commerce of the relevant situation. , food and other departments.

3. Consumer Complaint Handling System

(1) The company strictly implements the national after-sales service regulations for commodities, strives to improve the level of after-sales service, and protect the legitimate rights and interests of consumers;

(2) The company actively cooperates with the industrial, commercial and food departments to handle consumer complaints;

(3) The company handles consumer complaints in strict accordance with the "Consumer Rights Protection Law" and other relevant regulations Enforcement of laws and regulations.

xxx

Material Quality Guarantee on xx, xx, 20xx 8

Party A (supplier): Yuncheng Xinheng Food and Drug Packaging Co., Ltd. /p>

Party B (purchaser): Ningxia Qiyuan Sinopharm Co., Ltd.

In order to ensure that both parties A and B adhere to the principles of equality, mutual benefit, sincere cooperation, and mutual trust, and comply with relevant laws and regulations such as the Drug Administration Law, In compliance with the requirements of the "Good Manufacturing Practice for Pharmaceuticals", after friendly negotiation between Party A and Party B, the following commitments are made to the packaging materials provided:

1. Party A is responsible for providing Party B with the legal "Enterprise Legal Person Business License" ", "Printing Business License" (must be provided by printed matter manufacturers), "Quality Management System Certification Certificate", "Tax Registration Certificate", "Organization Code Certificate of the People's Republic of China", "Commodity Barcode Printing License" , "Class I Packaging Material Registration Certificate" (internal packaging material manufacturers must provide) and other relevant information copies with a red seal.

2. Party A provides the original power of attorney of the enterprise's legal person with the signature and seal of the legal person and the official seal of the enterprise, a copy of the employment certificate and a copy of the ID card of the contact person engaged in business.

3. The packaging materials processed by Party A must meet the following requirements:

1. The packaging materials provided must meet the statutory industry quality standards.

2. Each batch of packaging materials provided must have a product label on the package. The label content should include product name, specifications, quantity, and processing date, and its content must comply with GMP requirements.

3. The inner packaging materials shall be accompanied by Party A’s inspection report;

4. If Party B discovers quality problems with Party A’s packaging materials during storage and use, Party A shall Unconditional returns, exchanges or chargebacks.

5. Party B shall store the packaging materials in accordance with GMP specifications. Party B shall be responsible for any quality problems caused by Party B’s poor storage.

6. Party A and Party B are obliged to provide or feedback quality issues to the other party in a timely manner and provide opinions and suggestions.

7. Party A and Party B agree to abide by this commitment. If there are any outstanding matters, they will negotiate and reach a consensus.

8. This letter of commitment is made in duplicate and is legally binding. Party A and Party B each hold one copy, and it will take effect after being signed and sealed.

9. This letter of commitment is valid for one year, from January 1, 20xx to December 31, 20xx.

Party A: Yuncheng Xinheng Food and Drug Packaging Co., Ltd. Party B: Ningxia Qiyuan Sinopharm Co., Ltd.

Signature of the person in charge: Signature of the person in charge:

Date : January 1, 20xx Date: January 1, 20xx

Residential project quality guarantee certificate certification materials

Dear residents:

By Zhongye Construction Company The construction of Building 27 of Jinxi Refinery and Chemical Plant has been completed. In order to ensure the legitimate rights and interests of housing consumers, our company guarantees that this project is a qualified project. The design life of the foundation and structure of the house is fifty years. The foundation and structure of the house are Lifetime guaranteed use according to design life.

This is to certify

Huludao Hongcheng Housing Development Co., Ltd.

Material Quality Guarantee Certificate 9 on October 30, 20xx

In order to strengthen Our company manages the raw materials entering the construction site under construction, strengthens quality control, improves the code of conduct for the use of materials, and ensures the quality of the project. According to the relevant national regulations, laws and standards, this commitment letter is specially formulated:

　1 . Raw materials used in construction sites: such as steel bars, cement, gravel, and sand. Admixtures used in structural concrete must, in addition to having certificates and test reports, be sampled and sent to the testing center for re-inspection before they can be used.

2. When sampling, three parties (the builder, the supervisor, and the construction team members) must take samples and send samples for testing at the same time.

3. If the raw materials that must be re-inspected according to the above regulations are used without re-inspection, the company will be fined not less than xxxx yuan but not more than xxxx yuan for each discovery. Construction has been suspended and can only be resumed after passing the re-inspection.

4. Materials must be inspected and re-inspected before being allowed to be used. If materials of other types and specifications are used during actual construction, or materials of other types and specifications are used at will, once found, they must be replaced with the same ones as the original samples unless ordered to do so. In addition to raw materials and semi-finished products, a fine of xxxx% of the company's partial cost will be imposed.

5. If substandard materials, semi-finished products, or equipment are found to cause engineering defects or accidents, the company will be fined not less than xxxx yuan but not more than xxxx yuan, in addition to resolute rework.

Keep this in mind and be flawless!

Please rest assured, leaders of your organization!

xx company

xx Year xx month xx day