P20模具钢圆钢Cr12 Cr12MoV SKD11 SKD61 DC53 H13 4Cr13圆棒S136 NAK80 ¥10.00 440C圆钢9Cr18MoV模具钢板CG80无磁钢5Mn1K5 HPM75透气钢PM-35零售 ¥20.00 35#碳素钢棒C120U碳素钢板 CR12mov H13 模具钢棒 圆钢30CRMNSIa 大板 ¥20.00 宝钢H13模具钢板料SKD61圆钢棒5CrMnMo热作模具精板光板加工现货 ¥20.00 模具钢板NAK80 SKD61 S136H S136 H13 CR12 CR12MOV 4Cr13圆钢加工精板 ¥10.00 模具钢材45#钢板q235光板p20精板skd11圆钢h13棒dc53粉末钢8566 ¥23100.00