QJ 1392A-2005 Test method for internal pressure of solid rocket motor combustor casing has been changed from QJ 1392-1988 Test method for internal pressure of solid rocket motor combustor casing.
QJ 1392A-2005 Test method for internal pressure of solid rocket motor combustor casing has been changed from QJ 2039-1991 Internal pressure test method of solid rocket motor filament winding combustor shell.
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