... with shielding gas ( C02, CO2+Ar...)2. Our welding wire is with excellent welding technological properties, fast melting rate, ... all positions.Quality:AWS, GB and other standardsSpecifications:1. Sizes of wire (diameter) : 0.6mm ~ 2.0mm : 0.6,0 ... 1.4,1.6,2.0mmChemical composition of welding wire GB/T8110AWSChemical composition of welding wire(%), Include copper-coated layerCMnSiSPNiCrMoVCuER49-1≤0.111 ...