supply and delivery of isi marked ductile iron fittings ( bolted collar, d.i. pushing bend, tee, reducer , spigot tale piece , socket tale piece & other specials ) conforming to is: 9523-2000 for push on joint / flanged joint / mechanical joint with externally and internally coated with fusion bonded epoxy with necessary jointing material rubber gasket ( is 5382 1985 ) including transportation, loading, unloading and staking at site.delivery is to be made in respective sites of birbhum division , double flange reducer 100 x 80 is9523 , double flange reducer 150 x 100 , double flange reducer 150 x 80 is9523 , double flange reducer 200 x 100 pn-10 , double flange reducer 200 x 150 pn-10 , double flange reducer 200x80 pn10 is9523 , double flange reducer 250 x 100 pn-10 , double flange reducer 250 x 150 pn-10 , double flange reducer 250 x 200 pn-10 , double flange reducer 300 x 100 pn-10 , double flange reducer 300 x 150 pn-10 , double flange reducer 300 x 200 pn-10 , double flange reducer 300 x 250 pn-10 , double flange reducer 350 x 250 pn-10 , double flanged bend 300 x 11.25 pn-10 , double flanged bend 300 x 22.5 pn-10 , double flanged bend 300 x 45 pn-10 , double flanged bend 300 x 90 pn-10 , double flange reducer 350 x 300 pn-10 , double flange reducer 450 x 300 pn-10 , double flange reducer 450 x 350 pn-10 , double socket bend 300 x 22.5 , double socket bend 300 x 45 , double socket bend 300 x 90 , mechanical flange adaptor 300 mm , mechanical joint flange socket 300 mm