Material
The lock material on the market is basically divided into stainless steel, copper and zinc alloy. High-strength stainless steel, strong corrosion resistance, no discoloration, is the best lock material; copper is more versatile, superior mechanical properties, higher price; high-quality zinc alloy is strong and wear-resistant, corrosion-resistant, easy to form, multi-purpose In the mid-range lock.
style
When choosing a wooden door, it must match the style of the home decoration. Similarly, when we choose the wooden door lock, we also require the same style as the wooden door. For example, modern minimalist style wooden doors, the matching locks are best not to have too complicated carvings or patterns, and some retro elements are not included.
Surface treatment
The surface treatment is roughly divided into electroplating, spraying and coloring. A surface treatment forms a dense protective film on the surface of the product to prevent corrosion and rust, and make the product more beautiful and durable. At the same time, it is also a standard for measuring product quality. The quality of the locks is mostly electroplated. The coating is fine and smooth, even and moderate, with bright color, no signs of bubbles, rust and oxidation.
Executive standard
Foreign countries have very strict standards for hardware locks, so the quality of imported products is relatively high. At present, the Ministry of Light Industry has used some foreign standards to revise the original GB to the current higher QB standard.
Feel
You can also feel the quality of the lock by hand, and pull it with your hand. It feels smooth when you turn it off. Generally speaking, the weight of the lock is relatively high, the lock body can not be pointed, and the tip is easy to hurt. In particular, attention should be paid to the three positions of the end of the lock handle, the lock tongue and the four corners of the lock body; the lock spring has a flexible opening, high sensitivity and long service life.
Editor in charge: Xu Yuehua
Led Down Light,Ceiling Down Light,Ceiling Led Down Light,Cob Led Downlight
JIANGMEN MICHEN LIGHTING CO.,LTD , https://www.jmledbulb.com