Automatic Pipe Fabrication Welding Machine High speed and accurate processing efficiency and effect NAEC---- ... Petrol Steel, JSL, CNPC, SINOPEC, CNOOC, CNCEC, etc.Automatic Pipe Fabrication Welding MachineProduction Capabilities: 300, 000~1, 800, 000DI/ year, less ... CNC Flame/Plasma Cutting Machine-Multi-function Pipe Fitting-up Station-Conveyor Handling System-Small Pipe Welding Station (1''-8'')-Big ...