... 1)Quality warranty 2)Competitive price 3)Good plating, Strict inspection before shipment 4)Standard export packing Steel Commercial door hinge ... , 4.5"X4.5"X3.4MM, Ball Bearing, Square corners,Material: ... 5mm,4.5"x4.5"x3.4mm,5"x4"x3.4mm,4.5"x4"x3.4mm,etcFinish:Polishe Brass (PB) ... ORB) US10B,Antique Copper (AC) US11 steel commercial hinge 4.5x4x3.4mm