What are the brands of big locks?
1, Wang Li, from Wang Li Group Co., Ltd., a well-known trademark in China, a famous brand product in China, the top ten brands of security door lock cylinder in China, the most valuable brand in China 500, and a famous brand in the industry.
2. Jindian Atomic, Guangdong Jindian Atomic Lock Industry Co., Ltd., the top ten brands of lock cores for security doors, the leading lock core brand in China, a private technology enterprise in Guangdong Province, a high-tech enterprise and a well-known enterprise in lock manufacturing.
3. Wanjia, China Wanjia Group Co., Ltd., China well-known trademark, top ten brands of anti-theft door lock core, Zhejiang famous trademark, Zhejiang famous brand products.
4. Baode An, from Zhejiang Baode An Security Products Co., Ltd., is a professional lock-making enterprise integrating design, development, production, sales and service. It is one of the top ten brands of anti-theft door lock core and a well-known trademark in China.
5. Guli Guli Security Products Co., Ltd., a high-tech enterprise in Guangdong Province, a famous brand product in Guangdong Province, top ten brands of lock cores for security doors, a famous trademark in Guangdong Province, and a global leader in door-opening solutions.
6. Xinduo, China Xinduo Group Co., Ltd., China's well-known trademark, top ten brands of anti-theft door lock core, Zhejiang famous trademark, Zhejiang famous brand product, world famous brand and China export famous brand.
Selection skills of large door locks
1. Lock materials on the market are basically divided into stainless steel, copper and zinc alloy. Stainless steel is the best material for making locks because of its high strength, strong corrosion resistance and no discoloration. Copper is universal, with superior mechanical properties and high price; High-quality zinc alloy is durable, corrosion-resistant and easy to form, and is mostly used for mid-range locks.
2. Surface treatment can be roughly divided into electroplating, spraying and coloring. Through surface treatment, a dense protective film is formed on the surface of the product, which plays an anti-corrosion and anti-rust role and makes the product more beautiful and durable. At the same time, it is also a standard to measure product quality. The locks with good quality are mostly electroplated, and the coating is fine and smooth, even and moderate, with bright color and no signs of bubbles, corrosion and oxidation.
3. The foreign standards for hardware locks are very strict, so the quality of imported products is relatively high. At present, the Ministry of Light Industry has used some foreign standards for reference, and revised the original GB to QB with higher requirements. Brand manufacturers are already implementing QB standards, while small manufacturers are still implementing the original GB standards. When purchasing products, we must clearly implement the standards.
4. You can feel the quality of the lock. Generally speaking, the heavier the lock feeling, the thicker the material used for the lock core, the more wear-resistant and the higher the quality. On the contrary, the material is thin and easy to be damaged. ; The lock body can't be exposed, which is easy to hurt people. Pay special attention to the end of the lock handle, the lock tongue and the four corners of the lock body. A lock with a good lock spring has flexible opening, high sensitivity and long service life.
When we choose a big door lock, we need to have a certain understanding of its brand, and learning how to choose a product with good quality is the most critical issue. The above is the brand and purchasing skills of the big door lock that Bian Xiao introduced to you today. This is the end.