Y12 Y15 Y15PB SUM21 SUM22L 12L14 SUM32 1215 12L14 1214 1212 12L14 SWCH8A SWCH10K SWCH15K 10S20 10SPB20 15S20 9SMNPB28 22S20 35S20 9S20 9SMN28 45S20 9SMN36 9SMNPB36 1.0721 1.0722 1.0723 1.0718 1.0724 1.0726 1922 1914 1957 1912 1973 1926锰钢片锰钢带锰钢线锰钢棒锰钢板65 70 85 65MN 65SI2MN 60SI2CRA 60SI2CRVA SUP3 55CRMNA 60CRMNA 50CRVA SUP3 SUP2 SUP4 SUP6 SUP9A SUP13 SUP7 SUP12 SUP9 SUP10 SUP11A CK67 CK75 CK85 60SI7 65SI7 1.0909 1.0961 60SICR7 51CRV4 1065 1070 1078 1086 1066 5155 5160 4160