IS:1977-1975. Indian standard specification for structural steel (Ordinary quality)
Indian Standards Institution[ISI]
IS:1977-1975. Indian standard specification for structural steel (Ordinary quality) - New Delhi Indian Standards Institution 1977 - 14p.
IS CODE / I.S.I
IS:1977-1975. Indian standard specification for structural steel (Ordinary quality) - New Delhi Indian Standards Institution 1977 - 14p.
IS CODE / I.S.I