tender for supply of upvc materials and acessories for different rli schemes under islampur ( a.e ) sub-divisions under raiganj ( agri-mech ) division--- 1 supply 2 160 mm dia. flanged tail piece with metalic flange (cl ii) is : 10124/2009 duly marked with standard isi certification mark. 3 315 mm dia 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:40134/1988 marked & required solvent cement duly is:14182/1994 marked for each. 4 supply and delivery of polyester reinforced, 100mm dia. pvc lay flat hose pipes(non isi) 5 supply of solvent cement (medium bodied) is : 14182/1994 marked