sigh007 发表于 2012-3-21 19:03:32

MIL-PRF-32058


                   MIL-PRF-32058, PERFORMANCE SPECIFICATION: CHOCK, WHEEL-TRACK - AVIATION, ADJUSTABLE ROPE TYPE (18 JUN 2008)., This specification covers the requirements for aviation wheel- track chocks of the adjustable rope type.         
         
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