CO2 Gas shield Welding wire SG2 1. SG 2 Corresponding AWS A 5.18 ER ... YGT50 2. Size: 1.0mm, 1.2mm etc. CO2 Gas shield Welding wire SG2Features:1. Surface: smooth, bright.2. Copper layer: Strong, ... fields of vehicles, vessle, bridge, construction and machinery structures etc.Welding wire diameter:0.5mm, 0.6mm, 0.8mm, 1.0mm, ... ). Other packings: with drum or metal basket. CO2 Gas shield Welding wire SG2