... 80% 3.Suit 1.6-5mm rod 4. 1 year Warrany MMA series DC inverter ARC welding machine has the following characteristics ... size, light weight, high quality and energy-saving.3. Easy arc-starting and stable current, fast dynamic reaction, no noise, little ... for all kinds of basic welding rod,including acidity,alkalescence and cellulosecovered electrode.6. Suit for carbon steel,stainless,alloy steels etc ...