welding carbon steel, stainless steel, galvanized iron and other metal materials, also used in welding copper alloy, gold, silv DNY-10, DNY-16, DNY-25, DNY-35 movable hand held spot welderCharacteristics & Applications: Supply two kinds of cooling model spot welder: self-cooled and air cooled.Widely used in welding carbon steel, stainless steel, galvanized iron and other metal materials, also ...