Automatic Pipe Fabrication Welding Machine High speed and accurate processing efficiency and effect NAEC---- ... PLANT, ETCReference: CCC, L&T, PEC, Rotary Engineering, Petrol Steel, JSL, CNPC, SINOPEC, CNOOC, CNCEC, etc.Automatic Pipe Fabrication Welding MachineProduction ... & Beveling All-in-one Machine-High Speed Band Saw Cutting Machine-High Speed CNC Pipe End Beveling Machine-Two / Three / Five ...