IS:6315-1992. Indian standard floor springs. (hydraulically regulated) for heavy doors specification.
Bureau of Indian Standards[BIS]
IS:6315-1992. Indian standard floor springs. (hydraulically regulated) for heavy doors specification. - Ed.2 - New Delhi Bureau of Indian Standards 1992 - 5p.
ENG
IS Code / B.I.S
IS:6315-1992. Indian standard floor springs. (hydraulically regulated) for heavy doors specification. - Ed.2 - New Delhi Bureau of Indian Standards 1992 - 5p.
ENG
IS Code / B.I.S