sigh007 发表于 2012-3-22 15:53:22

MIL-W-21985


                   MIL-W-21985, MILITARY SPECIFICATION, WHEEL - CUSHION TREAD (SEMI-PNEUMATIC) FOR MOBILE GROUND SUPPORT EQUIPMENT (13 MAR 1959) ., This specification covers one type of cushion tread (semi-pneumatic) wheels for use on mobile ground support equipment.         
         
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