bids are invited for gantry 9.98 ( q3 ) providing and erecting overhead signs with retro reflective type iv sign plate fixed on angle iron frame with vertical and lateral clearance given in clause 802.2 and 802.3 and installed as per clause 802.7 over a designed support system of galvanised steel trestles and trusses of sections and type as per structural design requirements and approved plan, providing and fixing high intensity retro reflective type iv sign plate made out of 2.00 mm thick aluminium sheet face to be fully covered with blue / green high intensity grade retro reflective sheet and logo / matters, boarder made of with similar type of white sheeting after etching treatment of aluminium sheet, the black side is to be painted with epoxy grey paint. the plate is to be fixed on 40x40x5 mm angle iron frame with help of aluminium rivets total quantity : 1