达富供应合金结构钢G50461 50B50 G50501 TS50B50 SNCM439 SAE 4340 20CR4 1.7027 41CR4 1.7035 34CRMO4 1.7220 42CRMO4 1.7225 36CRNIMO4 1.6511 Y12 Y15 Y15PB Y40MN SUM21 SUM22 SUM32 B1112 12L13 1144 1215 1214 12L14 10S20 9SMNPB28 9SMNPB36 ML08AL ML10 SWRCH8A T10A T10 9SICR 5CRMNMO H13 CR12 CR12MOV 3CR2W8V CRWMN W6MO5CR4V2 W18CR4V 60SI2MN GCR15 38CRMOAL 40CRNIMO 20CRNIMO 40CRNIMOA 35CRMO 42CRMO 5CRNIMO 45# T7 T8 Q195 Q235 Q345 1.2083 1.2316 40CR 20CR 1CR13 2CR13 3CR13 4CR13 1CR17 SUS 420 SUS 440C 60SI2MNA 9CR18 9CR18MO ASP 23 ASP 30 ASP 60 DC53 M41 M42 P20 718 738 S136 42CRMOS4 1.7227