PPP-B-640D (INTERIM AMENDMENT 6), FEDERAL SPECIFICATION: BOXES, FIBERBOARD, CORRUGATED, TRIPLE WALL (09 SEP 1988) [S/S BY ASTM-D5168]
PPP-B-640D (INTERIM AMENDMENT 6), FEDERAL SPECIFICATION: BOXES, FIBERBOARD, CORRUGATED, TRIPLE WALL (09 SEP 1988) [S/S BY ASTM-D5168].