Our company was established in 1980 and has been producing locks more than 30 years. We are professional hardware manufacturing factory and produce a series products marked our brand "Top One", and the main products are general locks, hinges, door closers, exit panic devices. We keep developing new style of lock hardware, and we have more than thirty various types of patents applied from the administration of Intellectual Property. Welcome to us to looking what you want [ Click for detail ]