... , measuring tools, screwdrivers, picks, knives, scissors, gardening tools and other tools of the quenching, shaft, pin, gears, sprockets, ... Advantages:1) Adopting IGBT solid state inverter technology, high efficiency and energy saving, large output power2) 100% load ... gas, oxygen, acetylene, coking coal, electric furnace, high frequency tube etc.),the thermal efficiency 0f 95%, low consumption 7 ...