Automatic Welding Machine for Pipe Fabrication, High Pipe Welding Machine, Automatic Pipe Welding Machine manufacturer / supplier in China, offering Automatic Pipe Spool Fabrication Line/Pipeline Prefabrication Automatic Welding Center, Pipe Spool Fabrication System/Fabrication Line/ Pipe Fabrication Line, Simple Type Jacking System/Tank Construction Equipment/ Desulfurizing Tower Jacks and so on.