易切削钢：　　Y12.Y15.Y20.Y35.Y40Mn.Y100Pb.Y15Bi.Y100Bi.

1213.1215.12L14.1117.1144.1135.

SUM22.SUM23.SUM43.9SMn28.9SMnPb28.35S20.11SMn28.230M07.易切削不锈钢：　　303.303F.316F.303Cu.416.430F.430FR.440F.

合金结构钢：　　20Mn2V.20SiMn2MoV.12CrMo.20CrMo.35CrMo.42CrMo.35CrMoV.

20CrMnMo.12CrNi2.12CrNi3.12Cr2Ni4.20CrNiMo.9Mn2V