China Stainless Steel 4 Ball Bearing Door Hinge 4"X3"X3.0mm 4"X3.5"X3.0mm 4"X4"X3.0mm 4"X3"X2.0mm 4"X3"X2.5mm (DH03 4BB), Find details about China Door Hinge, Door Hardware from Stainless Steel 4 Ball Bearing Door Hinge 4"X3"X3.0mm 4"X3.5"X3.0mm 4"X4"X3.0mm 4"X3"X2.0mm 4"X3"X2.5mm (DH03 4BB)