... ; 4). best equiped. CO2 shielded welding wire.The CO2 gas protection wires is with ... welding the weld uniform appearance, suitable for welding in position.This series welding is mainly used for welding low carbon structural steel and low alloy steel ... ,such as ships, cars, bridges, container, engineering machinery, boiler, architecture, etc CO2 Gas Shielded Arc Welding wire ...