The product is a CO2 gas shielded welding wire, which is made of excellent steel by drawing, straightening and copper coating. It has various characteristics such as open arc, slag-free, good weld ability, high efficiency, beautiful bead, littler spatter. It can not be welded in all positions . The product has high precision size. It is winded in Spool, so that it can be welded automatically or semi-automatically.