1 See the surface treatment status

The locks are usually plated, sprayed or colored before leaving the factory. These steps are beneficial to the lock itself, because after this series of treatments, a protective film is formed on the surface of the lock to prevent corrosion and oxidation. . Through this point, the user can directly measure the quality of the lock.

2  weight than the feel

The locks for cutting corners are generally made of hollow inferior materials, which are not only light and light, but also have a poor hand feel.

3 See security standards

At home and abroad, there are very strict standards for hardware locks. Small manufacturers will not perform according to standards in order to save costs, and big brands will generally comply with standards.