Automatic Pipe Fabrication Welding Machine High speed and accurate processing efficiency and effect NAEC---- Minimize ... , Rotary Engineering, Petrol Steel, JSL, CNPC, SINOPEC, CNOOC, CNCEC, etc.Automatic Pipe Fabrication Welding MachineProduction Capabilities: 300, 000~1, 800, 000DI ... Station (2''-48'')Welcome to visit our company in Nanjing, China. For more information please contact us. Thank you!