All lock stealth lock installation must be correct operation, especially when installing the handle and panel to ban the use of paper, adhesive tape paste. Locks don't install when paint did not work on the door, otherwise it will cause surface damage, and time will be faded.
In use process, some of the zinc alloy and copper contact lock, installed on the door after a long time will find "spots", this phenomenon does not belong to rust, but belong to oxidation, if that happens, just wipe with surface spray wax can remove spots.
So we general advice you to choose stainless steel door lock. Stainless steel door lock, although is a commodity and small hardware, but it and the society has a very close relationship with people, relates to every family, units and the safety of the public. Lock is a very special commodity, has an extremely important relationship with safety. Therefore, whether domestic or foreign, lock industry are a set of strict quality standards and safety requirements.
Hotel door lock in Avent Security used the stainless steel as raw material. Stainless steel (304 grade) is purposely designed to absorb more energy without breaking. The stronger resistance to corrosion keeps a longer life time for the finish.