Specification for not rolled steel beam channel and angle sections , Reprint 1974 July
Indian Standards Institution IS : 808-1964
Specification for not rolled steel beam channel and angle sections , Reprint 1974 July - New Delhi, ISI 1974 - 19
Specification for not rolled steel beam channel and angle sections , Reprint 1974 July - New Delhi, ISI 1974 - 19