... &SHIPBUILDING, POWER PLANT, ETCReference: CCC, L&T, PEC, Rotary Engineering, Petrol Steel, JSL, CNPC, SINOPEC, CNOOC, CNCEC, etc.Automatic ... Efficiency of welding machines: 30 times of manual welding(AGW), 50 times of manual welding(EGW)2AGW adopts sub-arc welding ... technology3EGW adopts flux core wire4All the machines are applicable to botton-to-top ...