The cylinder is the heart of the door lock set, it determine the security of the door lock, you can see all detailed info about lock cylinder in this article
We can make door hardware with different material, generally, mortise door lock in stainless steel material, lock cylinder in brass material, butt hinge in stainless steel, concealed hinge in zin alloy material. Do you know the reason why we choose this material?
Almost all customers will ask me a question before place order, how long is your product warranty period? The reason is we take the quality as the top 1 consideration.
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