美标易切削钢：121312141215111711441212……国产易切削钢：Y12Y12PBY15Y15PBY40Y40MNY20Y35Y100PBY100BI……欧标易切削钢：11***N3011***NPB3011***B3711***NPB3710S2010SPB2015MN1335S2035SPB2036***N1436***NPB1438***N2836***NPB2844***N28……SUM11SUM12SUM21SUM22SUM23SUM25SUM31SUM32SUM22LSUN23LSUM24LSUM31L9***n281.07369***nPb289***nPb28K11***nPb301.07189***nPb3611***nPb371.07379S2011***n2811***nPb2812***nPb3512***n3510Pb2010SPb2017***n2035S2035***n2044***N2846S2015S20.35S2045S20SUM22)