ESTABLISHMENT OF A PANEL OF SERVICE PROVIDERS FOR SUPPLY AND DELIVERY OF PREFABRICATED CONCRETE RELATED PRODUCTS, G1, G5, G6 AND G7 ROAD CONSTRUCTION MATERIALS, BITUMEN RELATED PRODUCTS AND SUPPLY AND INSTALLATION OF MANHOLE GRIDS FOR A PERIOD OF THREE (3) YEARS: ALL FIVE (5) REGIONS IN THE GAUTENG DEPARTMENT OF ROADS AND TRANSPORT, AS AND WHEN REQUIRED.