... stainless steel pipe. Fine structure, easy operation, specialized in manufacturing. Automatic SS Welding Pipe Making MachineAutomated production process: 1.First, the ... : open book machine (uncoiler),→ forming welding machine,→ grinding machine, →sizing machine,→ frame straightening, →cutting machine,→ finished frame.Technical parameters: ModelHorizontal axis diameter (mm)Vertical diameter (mm ...