2343-26 2343-27 2343-28 2343-29 2346-02 2346-02 2347-02 2347-22 2347-23 2347-26
易切削结构钢：
Y12 Y12Pb Y15 Y15Pb Y20 Y30 Y35 Y40Mn Y45Ca SUM21 SUM32 SUM22L SUM42 SUM21 SUM22 B1112 11L08 1115 12L13 1120 1130 1140 1141 1212 1213 1108 1146 1215 12L14 G12134 G11410 G12120 G12130 G11080 G11460 G12150 G12141 10S20 10SPb20 15S20 9SMnPb28 22S20 35S20 9S20 9SMn28 10S20 45S20 9SMn36 9SMnPb36 1.0721 1.0722
