Sizes of wire (diameter) : 0.6mm ~ 2.0mm : 0.6,0.8,0.9,1.0,1.2,1.4,1.6,2.0mm Features:1. Our Copper ... . Sizes of wire (diameter) : 0.6mm ~ 2.0mm : 0.6,0.8,0.9,1.0,1.2,1.4,1.6,2.0mm GB/T8110AWSChemical composition ... of welding wire(%), Include copper-coated layerCMnSiSPNiCrMoVCuER49-1≤0.111.00~2.100.05~0.95≤0.030≤0 ...