bids are invited for boq of 5 items for electrical aluminium telescopic ladder of 4 point 4 mtr 15 steps 14 point 5 feet - aluminium telescopic ladder of 4 point 4 mtr 15 steps 14 point 5 feet make corvids bathla smarty welbuilt , heavy duty light weight 40 to 42 ft aluminium wall support extension ladder - heavy duty light weight 40 to 42 ft aluminium wall support extension ladder as per attached annexure make perfect rks saisiddhi or similar , heavy duty aluminium wall support ladder 12 feet height min 11 steps alu alloy with side rail - heavy duty aluminium wall support ladder 12 feet height min 11 steps alu alloy with side rail thickness not less than 2 point 5 mm anti slip flat rungs anti skid rubber shoes minimum safe load capacity 150 kg make perfect rks saisiddhi or similar , aluminium ladded self supporting heavy duty ladder 6 feet high - aluminium ladded self supporting heavy duty ladder 6 feet high with c section of 66 mm x 31 point 7mm x 12 guage having steps at 1 feet centre to centre top platform 16 inch x 18 inch corragated plate , self supporting type heavy duty 11 ft aluminum foldable ladder with platform - self supporting type heavy duty 11 ft aluminum foldable ladder with platform width 300mm height 1800mm 10 swg with 1 inch dia non slip 10inch corrugated tubing at 10 inch center rungs on climbing side wheeler platform on top aluminium ladder