... 3)finish:bright zinc plated 2012 New furniture metal steel hinge for Sofa, door(ISO9001-2008)Haiyan Hongtai Metal Products Co.,Ltd ... sheet, stainless steel 304 ,brass2) surface treatment: Zinc , powder coat, hot-dip galvanized3) machining Process: Stamping , turning,tube bending, welding, milling ... -86887878 Fax :86-0573-86887758 2012 New furniture metal steel hinge for Sofa, door