Product Description
Alloy steel structure
Grade:20Cr~40Cr、15CrMo-42CrMo(4118-140)、38CrMoAl、20CrNiMoH(8620H)、40CrNiMo、25Cr2MoVA、45CrNiMo、12CrMoV、35CrMoV、SCM440、20CrMnMo~40CrMnMo
Specifications:Φ90~Φ600
Executive standard:GB/T3077-1999
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