... .Fan-cooling; 2.Movable iron core transformer used; 3.Excellent welding characteri DESCRIPTION: 1.Fan-cooling;2.Movable iron core transformer ... .For welding of low-carbon or low-ally steels;5.Suitable for industry and construction fields;6.Lower price but with high ... efficiency. Including: BX1-160, BX1-200, BX1-250, BX1-315, BX1-400, BX1-500, BX1-630 series, etc... Welding Machine