Company carries out one sets of strict rules on the respect of materials-choosing, process instrument, process technician and technology warranty equipped by over 10 sets of test facilities including imported salt-spray inspector, PCB control aging test system, Electronic mortise motor aging instrument, imported machine of mortise durability. Spring anti-fatigued test machine, devastating test system for mortise, cover and handle, cylinder inspection machine. All the materials of our products are pure brass or imported stainless steel from Japan or superior Zinc alloy, the top technology has been applied in our factory for years, moreover, the elegant pearl chromed was painted on the lock after further study .In these year, we continued to find solution to cover all the aspects such as PCB stability, power consumption, Anti-static, anti-magnetic, weatherproof. Such kind of problem still exists in the other lock factory. Especially on the power consumption of RF lock, we are the pioneers to solve it thoroughly. With the humanized design, easy installation, simply operation, every user can enjoy our products without any setback from purchase to operation.