Handle lock, also known as handle lock, is divided into door handle lock and indoor door lock from the use space. Common production materials include: stainless steel, zinc alloy, pure copper and aluminum alloy. In order to match with home decoration, handle lock is designed into various shapes, including split type and one-piece type, which can be seen in residential quarters, office buildings, shopping malls and hotels. In order to be beautiful and durable, the middle and high-grade handle lock is often used in electroplating process. The handle and panel are covered with multilayer electroplating materials to make the door lock more durable and beautiful.