... system 3.ISO9001 2013 China best square steel tube bending Production Description Haiyan Hongtai Metal Products Co ... 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, electronics ...