IS:453-1993. Indian standard double-acting spring hinges-specification.
Bureau of Indian Standards[BIS]
IS:453-1993. Indian standard double-acting spring hinges-specification. - New Delhi Bureau of Indian Standards 1993 - 6p.
IS CODE / B.I.S
IS:453-1993. Indian standard double-acting spring hinges-specification. - New Delhi Bureau of Indian Standards 1993 - 6p.
IS CODE / B.I.S