HGK-200 from small car essence, regulate an ambulation, direction round, Han gun to clip to hold a machine, the Han gun swing machine and straightly lead a track, the control box etc. parts constitute.Multi-Functional welding carriage for all position fillet and butt joint welding.Microprocessor controlled full function torch weaving.Automatic return of the torch position to the center of weaving stroke at every weld stop.