supply & delivery of miscellaneous pvc items for different govt own & operated major rli schemes under assistant engineer (a-m) purulia-i (agri-mech) sub-division under the jurisdiction of purulia (agri-mech) division, belguma, purulia under non-planned maintenance work supply_delivery of miscellaneous pvc items for different govt own _operated major rli schemes , upvc pipes ( class-i ) , is : 4985 / 2000 certification marked with latest amendments, ivory grey coloured, both end plain, along with one matching coupler / socket ( class-ii ) duly is :10124 / 1988 marked & required solvent cement duly is-14182 / 1994 marked for each pipe. length of each straight pipe 6 mtrs. with tolerence ( + ) 10 mm. ( i ) 315mm nominal outer dia, nominal thickness 5.7 to 6.5 mm. , upvc extra coupler / socket ( class-ii ) , is : 4985 / 2000 certification marked with latest amendments, ivory grey coloured, both end plain.coupler for 315 mm. dia p.v.c. pipe is. 10124 / 1988 with latest amendments. , flanged tail piece with metalic flange ( class-ii ) , is : 4985 / 2000 certification marked with latest amendments, ivory grey coloured, both end plain. 160 mm. dia f.t.p ( is. no 10124 / 88 part- 6 with latest amendment ) , pvc solvent cement ( heavy duty ) pidilite