widely used in architecture, metallurgy, chemistry, mechanical, ship-building and other industries. BX1-200F-3, BX1-250F-3, ... Applicable for 2.5mm-8.0mm diameter coated electrode, and welding all low carbon steel metal components.With good ... is the most widely used energy saving AC arc welder, which is widely used in architecture, metallurgy, chemistry, mechanical, ship-building and other industries. ...