bids are invited for sink waste coupling size-4 / s.s. waste coupling ( chock stop ) for kitchen sink size 100mm ( sink waste coupling 4 ) confirming to 15:7231 ( supply ) -supply of aluminium extension ladder 13mtr fully extended ( 8.00 mtr + 8.00 mtr ) made of high tensile aluminium alloy c section 67x31x3.5 mm thickness confirming to he 30 grade t-6 temper as per 15:733 of hindalco make steel, made of no slip aluminium alloy, corrugated fluted pipe of 28x3 mm dia. steps to be rivetted at 305mm interval, with aluminium lm-6 catcher to lock ladder at every rung, nylon rope and pulley, rubber shoes at the bottom safety, additional ms guide pipe mixed inside the ladder at 1 meter interval for stability of ladder, ladder fabricated by expanding and flaring runs with stiles of the ladder for 100% twist proof and unbreakable performance. make- skyward or as similar. ptmt angle cock 15 mm make <> 1. finolex 2. astral 3. supreme 4. ashirvad 5. prayag. slider for seat aligning locking arrangement for lower side berth as per drg. no. adi / mg / amenity / 01 part-b of size:- 195x20x6mm. sample approval from consignee before bulk supply rubber profile for window glass in lengthof 4.5 meters as per rcf drg no lw 54141 alt nil or latest. aluminum can refill with metallic non return valve size 120 x 45 mm ( hxd ) approx, capacity 100 mlapprox with 3000 metered doses of mal-odour eliminator and fragrance from every refill. compatible for mystair air freshener dispenser. total quantity : 3383