sigh007 发表于 2012-3-23 11:03:16

MIL-PRF-18949A


                   MIL-PRF-18949A, PERFORMANCE SPECIFICATION: PROJECTILES, ILLUMINATING, LOCALIZED HEAT TREATMENT OF (5 JAN 1976) ., This specification covers the localized heat treatment requirements of an inner annulus of the body under the band seat on illuminating projectiles, and supplements the requirements of the projectile specification.         
         
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