In essence, Outdoor stainless steel padlock,Outdoor fingerprint padlock,Tuya Outdoor Smart Padlock,Fingerprint door lock,Fingerprint glass door lock,Disc brake lock performance and its quality are largely decided by its raw materials. In terms of raw materials of Lock Cylinders,they have gone through plenty of tests on their chemical components and performance. In this way, the product quality is guaranteed from the source. At present, the product has been tested to be of excellent and other properties.