... 3.to plans to sample custom 2013 Steel structure welding leg part for office Chair part Production Description Haiyan Hongtai ... dip galvanized,blackening, electroplate…3) machining Process:Stamping , turning,tube bending, welding, milling, CNC lathe…4) usage of ... products are stampings, furniture hardware, machine part, Auto part,tube bending ,welding part4. Used in the machinery, construction, ...