The use of non-toxic tasteless, harmless to the human body PVC material
The plastic shell is made of high quality ABS material, will not crack under low temperature, and will not deform under high temperature environment.
The key and the lock core adopts the high quality of the copper, strong wear resistance, is not easy to break in use and deformation
Each key by automatic computer tooth opening machine
Each key is provided with a code, and the user can match the key according to the code when the key is lost.