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Date: 2014-09-22 22:25:08Building materials Structural steel Architecture Construction Structural engineering Rebar Galvanization Steel frame Welding joints Steels Chemistry Welding | B 157(2) > GANTRY COLUMN > GANTRY COLUMNAdd to Reading ListSource URL: www.hyd.gov.hkDownload Document from Source WebsiteFile Size: 982,07 KBShare Document on Facebook |