PACKING, PREFORMED, AMS 7278, "O-RING" (S/S BY MIL-R-83248/1A)
预成型填料 AMS 7278 “O型环”（S/S BY MIL-R-83248/1A）

1993-06-20

PACKING, PREFORMED, AMS 7278, "O-RING" (S/S BY MIL-R-83248/1A)
预成型填料 AMS 7278 “O型环”（S/S BY MIL-R-83248/1A）

1994-05-20