welding machine ac are welding mahine, welder with good quality and high performance more than 2 decades experience. BX6 Series Ac welderDescrition:1.Fan-cooling2.step-by-step current adjustment3.Excellent welding characteristics4.For welding of low-carbon or low-alloy steels:5.EconomicalIncluding BX6-200,BX6-250,bx6-300,BX6-400,BX6-500 series,etc... MMA WELDER