TIG/MMA Welding MOSFET technology With PWM pulse width modulation technology HF arc starting CE TIG/MMA WeldingFEATURES:♦Adopt advanced MOSFET technology,energy-saving.♦Two functions of TIG/MMA,economic and practical .♦With PWM pulse width modulation technology,HF arc starting,stable current,the first choice for thin plate welding.♦With perfect over-current and over voltage protection function, ...