... hinge for Sofa, door 1)steel hinge 2)Material:carbon steel 3)finish:bright zinc plated 2011 New furniture metal steel hinge ... for Sofa, door(ISO9001-2008) Haiyan Hongtai Metal Products Co ... ,tube bending, welding, milling, CNC lathe…4) usage of products: Furniture fitting, construction hardware , telecom , auto, machine…5) terms of ...