... Best seller ball bearing door hinge: 1, High quality material: stainless steel and the copper; 2, High quality bearing, and the high ... , The axial play are small, is 0.3mm, after rubs circle processing specially, guaranteed that opens and closes 200,000 times ... slides and rail, door catches, door clamps, door closers, faucets, hooks, sinks.Our company has accumulated some experiences in the production ...