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模具钢材40CR铬GCR15轴承16MNCR5 S136HCR12MOV板40CR13圆棒SKD11
P20 718 2738H钢板S136HCR12MOV圆钢DC53 84078418SKD61 SLD P40H
A3440C DC04 P20 S136HCr12MoV9Cr18Mo圆钢NAK80 4CR13模具钢
模具钢材H1345#号钢S136DC534CR13圆钢718HCR12MOV P20钢板440C
模具钢DC53 SKD11 P20 s136H h13圆钢nak80 2738 718Hcr12mov圆棒
精密模具钢板DC534CR13718HCR12MOV板材S136SKD61SKD11圆棒