sigh007 发表于 2012-3-29 11:53:29

MIL-S-7998A (NOTICE 1)


                   MIL-S-7998A (NOTICE 1), MILITARY SPECIFICATION: SANDWICH CONSTRUCTION CORE MATERIAL, BALSA WOOD (07 AUG 1996) ., MIL-S-7998A is inactive for new design and is no longer used except for replacement purposes.         
         
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