... driven CO2 welding weaving welding achieved Welding carriage/tractor with swing, Rack type to ensure precision driven, Vertical welding ... fillet welding, horizontal welding and welding Yang. Car body, swing device, the control panel into one, it can walk on top ... welding and other welding and horizontal position welding.Swing mode, swings, swing speed, swing around the center and the residence time and ...