IS:2691-1988. Indian standard specification for burnt clay facing bricks.
Bureau of Indian Standards[BIS]
IS:2691-1988. Indian standard specification for burnt clay facing bricks. - New Delhi Bureau of Indian Standards 1988 - 2p.
ENG
IS Code / B.I.S
IS:2691-1988. Indian standard specification for burnt clay facing bricks. - New Delhi Bureau of Indian Standards 1988 - 2p.
ENG
IS Code / B.I.S