... (Tank Welder) 1)Single side welding, double side shaping Single Sided Welding & Double Sided Shaping AGW (Tank Welder)Suitable for ... Corp., CNPC Group, SINOPEC GroupFeatures:1, Single side welding, double side shaping2, Adopting Sub Arc Welding technology3, Standard machine ... of AGW could be 30 times as manual welding6, Hydraulic lifting device is necessary when top-to-bottom tank erection7, More ...