sigh007 发表于 2012-3-27 00:24:19

MIL-S-980B (NOTICE 1)


                   MIL-S-980B (NOTICE 1), MILITARY SPECIFICATION: STEEL, CHROMIUM ALLOY, BARS (FOR TORPEDO GYROSCOPE BEARINGS) (16 JUN 1997).,   MIL-S-980B is inactive for new design and is no longer used except forreplacement purposes.         
         
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