... 1 Adopting advanced inverter technique and excellent importedcapacity equipment, high working efficiency, small in size and light in weight ... ferrite materials are used in high frequency transformer, which are small wastage, high conversion rate, high efficiency and energy-saving.5 ... mm)480*204*303480*204*303565*306*432manual welder manual welder manual welder MOSFER Inverter DC Manual Welding machine