... structure,eg.cotnainer,building in spools mig welding wire Copper coated welding wire, suitable for 100% CO2 and ... CO2 mixed gas protective welding with stable feasibility, good welding seams, little spatters and excellent welding process properties.Suitable for ... , construction machine, railway construction, pressure vessel for semi-auto or automatic gas shielded welding. -- Standard: GB/T: GB/8110 ...