tender for providing, laying and jointing of sluice valve with labour and material site ward 52. file no 160/23x9/1.--- 1 screen pipes with ribs 200mm dia 2 250 mm dia 8kg per 3 providing, laying, jointing & field testing of high densitypolyethylene pipes, (hdpe) confirming to is 4984/ 14151/ 12 4 demolishing r.c.c. work manually/ by mechanical means including stacking of steel bars and disposal of unserviceable mat 5 all kinds of soil 6 ordinary rock 7 200mm dia 8 cast iron valves(250mm pn-1.6) providing & fixing of cast iron double flanged 9 300mm dia 10 flanged spigot (tail piece) 3.11.5 200mm diameter heavy class 11 providing and laying in position cast iron flanged spigot (tail piece) 250mm dia heavy class 12 providing and laying in position cast iron flanged spigot (tail piece) 300 mm dia heavy class 13 200mm pn 16 14 250mm-providing & laying ductile iron mechanical joint collar with follower glands conforming to is-9523/2000 having dim 15 300mm-providing & laying ductile iron mechanical joint collar with follower glands conforming to is-9523/2000 having dim 16 manufacturing and supply of specials made out of m.s. steel plate or hr coil conforming to is 3589-2001 or its latest 17 cement mortar 1:6 (1 cement : 6 coarse sand 18 1:6 (1 cement: 6 sand) 19 providing and laying cement concrete grade m-20 (nominal mix 1:1.5:3) with 20 mm graded crushed stone aggregate, mixing 20 loading and unloading of stone boulder / stone aggregates / sand / kanker / moorum. (placing tipper 21 filling by available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exce 22 filling by selected soil (excluding rock( in trenches plinth sides of foundations etc. 23 pumping out to remove the sewers blockage by using suitable pump sets operated by generators, whole assembly mounted on