... -500 D. I/8hrs 2)TIG/MIG/SAW are optional Heavy-Duty Elbow Welding MachineSuitable for industries of: OIL AND GAS, REFINERY ... .Reference: CCC, L&T, PEC, SAIPEM, TECHNIP, Rotary Engineering, Petrol Steel, CNPC, SINOPEC, CNOOC, CNCEC, etc.Features:1, Welding efficiency: 280 ...