... 3.Widen welding seam one time 4.Improve speed Welding Oscillator, assistant auto welding machine, can use with Welding Manipulator, ... achieving good internal quality and nice appearance. 2. Instructions-Welding Oscillator(namely tig welding machine), a general welding assistant equipment;-widen ... Accuracy ±0.3mm Remark: We can also made welding oscillator in special specification for user demands.