Cr12MoV模具钢 Cr12热处理 S136钢板 4Cr13硬料 SKD11光圆 D2圆棒
模具钢Gr12/Cr12MoV 4Cr13圆钢NAK80 P20圆棒H13板SKD61 718H板材
模具钢材dc53光板45号钢p20精板cr12mov钢板s136精磨skd11加工h13
45#精料Q235B大型cncA3精板cr12mov圆DC53铁圆棒skd11模具钢材h13
45号钢板精料光料加工 q235 A3光板精板加工P20 DC53 CR12MOV定制
SUS440C 440 440B不锈钢 9Cr18圆棒 9Cr18Mo圆钢 9Cr18MoV 440C板
模具钢材45号钢板skd11 dc53 h13 718精光板4cr13 p20圆钢cr12mov
40Cr调质圆棒 42crmo调质/光轴/磨光圆/研磨棒/圆钢45号钢/调质棒
60Si2Mn圆钢板40CrNiMoA圆棒T10A高碳钢38CrMoAlA圆棒65Mn弹簧钢
模具钢H13/Cr12mov/DC53圆棒 LD/4Cr13/P20/718H/S136/NAK80 圆钢