bids are invited for procurement of open gym equipment at nssc dda air walker , sit up station , air swing , horse rider station , stair stepper with twister , leg press , arm wheel , exercising bar , double cross walker , twister triple standing , rowing machine , elliptical exerciser , weight assisted shoulder press , weight assisted lat pull down , weight assisted chest press , weight assisted rowing machine , sbr styrene butadiene rubbertiles , earth work in surface excavation , 1x5x10 cement concrete flooring , excavating , 1x1.5x3 cement concrete , 1x2x4 cement concrete flooring total quantity : 706