IS:2222-1991. Indian standard specification for burnt clay perforated building bricks.
Bureau of Indian Standards[BIS]
IS:2222-1991. Indian standard specification for burnt clay perforated building bricks. - New Delhi Bureau of Indian Standards 1991 - 2p.
ENG
IS CODE / B.I.S
IS:2222-1991. Indian standard specification for burnt clay perforated building bricks. - New Delhi Bureau of Indian Standards 1991 - 2p.
ENG
IS CODE / B.I.S