... 2.Strict quality control, 3.ISO001-2000 Heavy Duty Pipe Clamp Production Description Haiyan Hongtai Metal Products Co.,Ltd.We ... blackening, electroplate…3) machining Process:Stamping , turning,tube bending, welding, milling, CNC lathe…4) usage of products: Furniture fitting ... more than 10 years; 3. Main products are stampings, furniture hardware, machine part, Auto part,tube bending ,welding part4. Used ...