sigh007 发表于 2012-3-24 11:28:25

MIL-STD-1867A


                   MIL-STD-1867A, MILITARY STANDARD: SHAFTS, STEEL SAE 5140, 5145, AND 5150 HEAT TREATMENT OF (13 JAN 1983) ., This standard establishes processes for heat treatment of shafts made from SAE 5140, 5145, and 5150 steel.         
         
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