煤粉立磨辊套专用耐磨焊条DURMATFDCrMo1耐磨焊条0.070.71.51.30.5270-300HBMF1-300-PT121-T5K41.21.22.4DURMATFDSER耐磨焊条<0.14.54.8188.55.51R46-50HRc热硬化***高56HRcSpecialalloy/1.22.4产品名称C%Si%Mn%Cr%Ni%Mo%Co%Nb%V%W%Fe%oth%堆焊硬度DIN8556Alloy-No./AWSType[φinmm]主要应用)