... in architecture, metallurgy, chemistry, mechanical, ship-building and other industries. BX1-200F-3, BX1 ... -500F-3, BX1-630F-3 moving iron & magnetic AC Arc welding machineCharacteristics & Applications: Single manual ... used in architecture, metallurgy, chemistry, mechanical, ship-building and other industries. Model200F-3250F-3300F-3315F-3400F- ... -315F-3 moving iron & magnetic AC Arc welding machine