What are the lock brands
Lock brand Guli
Guli Lock is a famous trademark in Guangdong Province. The company was founded in 1992. In 21, it joined the ASSAABLOY Group in Sweden. It is a large-scale professional manufacturing and production base of professional door control products in Asia. In 212, it was renamed Zhongshan Yasha Helai Security Technology Co., Ltd., which is the first manufacturing enterprise in China that can be designed according to strict American standard ANSI, European standard EN, New Zealand standard and China fire protection standard.
lock brand sanhuan
Yantai sanhuan lock industry group co., ltd. was established in 193, which is the birthplace of modern lock manufacturing industry in China. The company's technical equipment, management level, technology and development ability always rank first in the same industry in China. The company's interests, market share and foreign exchange income are the first in the same industry in this country. The company's main business involves many fields of the single lock industry.
lock brand Yajie Hardware
Guangdong Yajie Hardware Co., Ltd. was established in 199. It is a high-end brand enterprise that researches and develops decorative hardware products, and its production and sales volume is. In 212, Yajie Hardware won the honorary title of "China Lock King" for its continuous innovation and excellent brand image. After years of development, Yajie Hardware has become a comprehensive enterprise of sales, transportation and production.
lock brand Tianyu
Tianyu lock industry was established in 1984. It started in a small workshop. After years of development, it has become a leader in the lock industry. Today, Tianyu Lock has the characteristics of large scale, abundant funds and advanced technology. It is also committed to developing high-quality lock products. Production and sales have gained a place in today's lock industry and won many honors.
buying skills in indoor door lock
observing lock standards
generally speaking, whether it is brand name or ordinary brand lock products, there will be corresponding implementation standards, such as imported locks, whose implementation standards are usually QB. Relatively speaking, their products will have better performance and more expensive prices. Nowadays, many domestic brands of locks are also produced according to this standard. Only some unknown manufacturers still insist on implementing the old GB standard. Therefore, the first thing for indoor door lock to buy technology is to comply with its implementation standards.
Contrast touch
When viewing the implementation standards, touching the lock by hand is also an important method to judge the product quality. This is a method to judge the quality of products, the manufacturing technology and materials used are often better, and the fluttering light shows that the material cost is relatively low and the durability is poor.
Understanding the materials used for locking
This can be said to be the most critical part of indoor door lock's purchasing technology. From the best to the second, the materials of lock products are generally made of stainless steel, copper and zinc alloy. The door lock made of these three materials not only has high mechanical strength, but also is stronger and has higher safety factor.
Look at the appearance
Many of the many technologies for buying an inner door lock often ignore the external appearance. Nowadays, various businesses deal with it in the following categories: color, painting and electroplating. The operation mode of the three is to add a protective "coating" on the surface of the product, which not only achieves the anti-corrosion effect, but also presents a more comfortable appearance.
that's the introduction of the lock brand we brought to you. thank you for reading.