... simple circuit, compact, light, high efficiency and energy saving. Electrode welding machine Advanced invert technology, simple circuit, compact, light, high efficiency and ... good quality welding seam.Widely used for oil pipeline, petrochemical, car, shipbuilding, boiler, nuclear electricity, space flight, war Industrybridge building and ... (mm)375*155*232480*204*303565*30*495 Electrode welding machine