IS:269-1989. Indian standard ordinary portland cement, 33 grade-specification.
Bureau of Indian Standards[BIS]
IS:269-1989. Indian standard ordinary portland cement, 33 grade-specification. - New Delhi Bureau of Indian Standards 1993 - 13p.
IS CODE / B.I.S
IS:269-1989. Indian standard ordinary portland cement, 33 grade-specification. - New Delhi Bureau of Indian Standards 1993 - 13p.
IS CODE / B.I.S