9 Years
ABS BV RINA GL LR NK KR 42CrMo4 SCM440 AISI 4140 Alloy Steel Forged Shaft Blanks Quenching And Tempering Rough Machining Material:42CrMo4 Standards: GB42CrMo ASTM4140/4142 AISI4140/4142 JIS SCM4 DIN ...
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