焊丝 规格 SG2 是什么意思？

低碳钢焊丝 SG2

不锈钢焊条13 18 1711 199 199nC 2312nC 2312Nb 299 134 188Mn6 19123 19123nC 18153nC 18175nC 18202CuNb 20163Mn6 17 199Nb 19123Nb 19134 9 30 S-CoCr-28 254 1836 2212 2520 2520nC 25252Nb CrMoWV12
耐热钢焊条EMo EMoV ECrMo1 ECrMoV1 ECrMo2 ECrMo5 ECrMo9 ECrMoWV12
低碳钢焊丝SG1 SG2 SG3 SGR1 SGB1 S1 S2 S3 S4 S5 S6 S1Si S2Si S2Mo S3Mo S4Mo S2Ni1 S2Ni2

不锈钢焊丝X8Cr14 X8Cr18 X20CrMoNi17-1 X2CrNi24-12 X10CrNi24-12 X10CrNi30-9 X3CrNi13-4 X15CrNiMn18-8 X2CrNiMo18-16-5 X2CrNiMoN20-16 X8CrTi18 X8Cr9 X8Cr30 CoCr28 X12CrNi26-5 X12CrNi22-12 X12CrNi25-20 X40CrNi25-21 X24CrMoV12-1

不锈钢埋弧焊用焊丝X5CrNi19-9 X1CrNi19-9 X5CrNiMo19-11
X2CrNiMo19-12 X5CrNiNb19-9 X5CrNiMoNb19-12 X5CrNi19-9 X1CrNiMo19-9 X5CrNiMo19-11 X2CrNiMo19-12 X5CrNiMo19-12 X5CrNiNb19-9 X5CrNiMoNb19-12
耐热钢气体保护焊用焊丝SGMo SGMoV SGCrMo1 SGCrMo2 SGCrMo5 SGCrMo9 SGCrMoW