... seller ball bearing door hinge Characteristics of Best seller ball bearing door hinge: 1, High quality material: stainless steel and the copper; ... specially, guaranteed that opens and closes 200,000 times; 4, The hinge axial play is smaller than 0.3mm, ... locks, cabinet locks, handles, butts and hinges, slides and rail, door catches, door clamps, door closers, faucets, hooks, sinks.Our company has ...