1.Torch is guided exactly along welding seam 2.Save welding time 30% 3.Improve welding efficiency 40% 4.dustproof settings Seam Trackings, assistant automatic welding machine, can use with welding column and boom. Below is introduction. 1. FunctionsWhen the welding seam is long, not straight, or spiral, our machine can control welding torch move along welding seam direction strictly, thus saving ...