13961644494
12L14进口易切削圆钢
11sMn30(1.0715)
11SMnPb30(1.0718)
美标1215
易切削钢12L14
易切削钢Y12Pb
易切削钢Y15Pb
46S20(1.0727)
11SMnPb37
10S20(1.0726)
35S20 (1.0726)
15SMn13 (1.0725)