supply of miscellaneous materials for maintenance of rli schemes under bethuadahari (a-e) sub-division, under krishnagar (a-m) division , supply & transport of 150 mm rubber insertion 5 mm thick with proper reinforcement 2 ply conforming to i.s.638 / 79 with isi mark with latest ammendments suitable for raised surface of m.s.flange as per i.s.6392 / 71 ( table-17 ) , 150 mm dia 3 mm thick rubber insertion conforming to is:638 / 79 as per sample , 150mm dia m.s.heavy duty hose clamp 5 mm thickness 45 mm width fitted with bolts & nuts. , supply & transport of 300 mm rubber insertion 5 mm thick with proper reinforcement 2 ply conforming to i.s.638 / 79 with isi mark with latest ammendments suitable for raised surface of m.s.flange as per i.s.6392 / 71 ( table-5 or 11 ) as per sample , 150 nb dia m.s.z bend made from m.s.erw pipe both endflange welded.pipes as per i.s.1239 & flanges as per i.s.6392 / 71, table-17. as per sample.