... pipe welding mill machine Description: 1.Stainless steel pipe welding machine, stainless steel pipe making machine, decorative stainless steel pipe production line.2. Processing pipe diameter: 6-219mm.3. Processing pipe ... ..Automoted production process: The open book,→ play marks, → forming, → welding, → grinding, → sizing, s → traightening, → fixed length, → ... .04KW17*0.9 Water Pipe making machinery