bids are invited for electically operated sliding gate the m.s. material used shall be as per respective is codes , gi binding wire, thickness of wire 0.80mm , 12mm dia tmt bars , 10mm dia tmt bars , indian standard medium beam , plywood 18mm thick for form work , wooden beading 50mmx25mm , ms nails 50mm long , cement. cement of 43 grade opc in sealed bags each weighing 50 kgs. , river sand conforming to is 383-1970. , aggregate 20mm graded confirming to is 383-1970 , aggregate 40mm graded confirming to is 383- 1970 , stone boulders for hard core of size 40-63mm confirming to is 383-1970.