SPECIFICATION FOR COLD FORMED LIGHT GAUGE STRUCTURAL STEEL SECTIONS
IS:811- 1987
SPECIFICATION FOR COLD FORMED LIGHT GAUGE STRUCTURAL STEEL SECTIONS - 2ND - LONDON THAMES AND HUDSON PUBLISHING COMPANY 1991 - 29
SPECIFICATION FOR COLD FORMED LIGHT GAUGE STRUCTURAL STEEL SECTIONS - 2ND - LONDON THAMES AND HUDSON PUBLISHING COMPANY 1991 - 29