supply and delivery of various misc. materials for maintenance of different state owned major rli scheme under malda-i (a-m) sub-division under malda-i (a-m) division under non-plan programme. , supply and delivery , coupler for 315mm dia pvc pipe is 10124/1988 with latest amendments with free solvent cement. , coupler for 200mm dia pvc pipe is 10124/1988 part-ii with latest amendments with free solvent cement. , coupler for 140mm dia pvc pipe is 10124/1988 part-ii with latest amendments with free solvent cement. , 315mm dia pvc ftp with ms flange(is no. 10124/88 part-8 with latest amendment) , 160mm dia pvc ftp with ms flange(is no. 10124/88 part-6 with latest amendment) , solvent cement is 14182-1994 with latest amendments , 150mm dia isi mark and specification pn-1.6, c.i sluice valve with hand wheel is:14846 , 150 mm dia ci alfa-alfa valve as per is 210/1239 with latest amendments. , gi top cover plate of 150 mm dia alfa alfa valve(c-type) 273.1 mm dia 10mm thick and pcd 257 mm with hub internal dia 20 mm outer dia 45mm 8 nos holes each 45 degree apart fitted for 150 mm nominal bore alfa alfa valve. , 150mm dia ci foot valve complete set heavy duty (flange end & swing type) weight 28kg+5% the disc face will be made of leather and strainer made of galvanized steel. the valve shall be tested for (close end test) against hydrostatic test requirement. is 4038/1986(table-17) with latest amendment isi marked. , 150 mm dia foot valve leather washer(good quality)