When choosing locks, you should pay attention to the following three points:
 
1. Compare the weight of the lock by hand. The heavier the lock core, the thicker the material and is more wear-resistant. On the contrary, the material is thin and easily damaged.
 
2. Check the surface finish of the lock to see if it is smooth and smooth without spots.
 
3. Open it repeatedly to see the sensitivity of the lock cylinder spring.
 
In addition: consumers should pay attention to the following points when choosing tableware:
 
① Choose products from companies with high reputation, stable quality and good after-sales service.
 
② First check whether the packaging signs of the purchased products are complete (including product execution standards, grades, production company names, addresses, and production dates) whether the packaging is firm and whether the contents of the instructions are consistent with the products. Be careful to prevent exaggeration that is inconsistent with the facts. .
 
③Observe the appearance and quality of the product, including whether the lock head, lock body, lock tongue, handle, cover panel parts and related accessories are complete, whether the surface color of electroplated parts and spray-painted parts is bright and uniform, and whether there are any signs of rust, oxidation and damaged.
 
④ Check whether the function of the product is reliable and flexible. Two or more products should be selected for comparison and inspection. Especially when purchasing two-way lock products, all keys must be used to test the opening and closing of the inner and outer locks respectively.
 
You should also check the safety mechanism of the product. It is recommended to try each lock at least three times.
 
⑤Choose furniture according to the use environment, such as dryness and humidity, door structure, thickness, left or right door opening, inward or outward opening, etc.
 
⑥The mutual opening rate is the mutual opening ratio of the lock and the key. The fewer locks opened by one key, the stronger the safety and reliability of the lock. When purchasing, consumers should try their best to choose a lock with a large number of key teeth, because the more teeth the key has, the greater the difference and the lower the mutual opening rate of the lock.