... , simple circuit, compact, light, high efficiency and energy saving. Electrode welding machine Advanced invert technology, simple circuit, compact, light, high efficiency and ... , mid carbon steel and alloy steel, all ferrous metal can get good quality welding seam.Widely used for oil pipeline, petrochemical, car, shipbuilding ... Dimensions(mm)375*155*232480*204*303565*30*495 Electrode welding machine