Solder Wire Diameter: 0.5mm-5.0mm Sn/Pb: 63/37, 60/40, 55/45, 50/50, 40/60, 30/70, 20/80 AlloyContentMeltingPoint()FluxContentDiameterWeight/rollUsageSn63Pb37183 2.0±0.5 0.5-3.0mm 13-1000gHigh-class electronics products and lighting industry.Sn60Pb40183-190Sn55Pb45183-2032.0±0.5 0.5-3.0mm 13-1000gNormal electrical,lighting or toy field.Sn50Pb50183-216Sn45Pb55183-227 2.0±0.5 0.5-3.0mm 13- ...