... ISO 9001 certified Specifications:wall light steel keel:Name: Wall light steel keel Shape:U Profiled Length:3m or ... steel sheet1materials: hot galvanized steel sheetparts:cross keel ,vertical keel,cross arm keel,accessoriessize:Q50,Q75,Q100,Q150OTHER SIZE CAN BE ... MADE AS REQUESTmaterials: hot galvanized steel sheetparts:main keel ,auxiliarykeel,,accessoriessize:D38,D50,D60OTHER SIZE CAN BE MADE ...