1) CE, CCC approval 2) 1 years warranty 3) Toshiba Mosfet The features of inverter dc TIG/MMA welding machine/welder is as follow:1.Advanced MOSFET inverter technology, high working efficiency, reduced size andweight, easy to carry.2. Simple structure, good process, reliable and durable, easy for maintenance.3. HF pressure increasing arc initiation pulsation thermal arc initiation design, ...