sigh007 发表于 2012-3-22 15:54:31

MIL-V-18436F


                   MIL-V-18436F, MILITARY SPECIFICATION, VALVES, CHECK: BRONZE, CAST-IRON, AND STEEL BODY (6 NOV 1987)., This specification covers bronze, cast-iron, and steel body check valves with regrinding, renewable, or regrinding-renewable disks and seats.         
         
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