1.Mma welding machine: Arc Welder 2.High efficiency,energy saving, 3.Easy operation,economic, 4. ... , stainless steel, alloy steel and cast iron, etc.2)The inverted frequency reaches 100kHz, corresponding with a dynamic response. Being easy ... .minisite.productShow(); oProductShow.init( { 'aImgSrc': aBigImageSrc } ); } )(); mma welding machine: Arc Welder(ZX7-200)