... machinery, atomic energy etcApplicable scopeApply to tube diameter from16-300mm, tube-pipe,tube-elbow, Tube - flanges,tube-valves, carbon steel, alloy steel ... Drive and wire feed adopts stepping motor, make nose operate reliable.Nose equipped with balancer, operation convenience, reduction of ... using forced water cooling, keep long-term work,Nose can choose arc length automatic adjustment and yawing ...