supply and delivery of different dia pvc pipe with fittings for maintenance and repair works of different m.i. schemes under lalbagh (a-i) sub-division within berhampore-ii(a-i) division under non-plan. , supply and delivery of materials , supplying of upvc pipes (class-i) is: 4985/2000 certification marked with latest amendments lvorycoloured end plane, along with one matching coupler / socket (class-ii ) duly is: 10124/ 1988 marked and required solvent cement duly is: 14182/1994 marked for each pipe. length of eatch straight pipes 6 meters with tolerance (+) 10 mm upto the destination point inclusive of all charges. 140 mm dia (class-i) , supplying upvc fittings isi marked- is 10124 160 mm ftp , supplying of upvc coupler (class-i) is: 10124 ( part i&ii) / 1988 withlatest amendments upto the destination point inclusive of all charges. 160 mm coupler