tender for supply of filter bags and cages for ash handling system to rgtpp, khedar, hisar? , filter bag for intermediate surge hopper (tech. data: size-id-155 mm x 2740 mm (l), material: nomex non woven needle felt - 550 gm/m2, type: coller type, finish: singed and cylindered finish, gas temp.- 160 degree c) & antistatic , cages for bag filter of intermediate surge hopper size: id-150mm x 2725 mm (l), material for cage: cages made from g.i., 4 mm wire of is 7887, no. of vertical wire 12 & 150 mm ring spacing with 18 no. of horizontal rings, top cup 185 x 25 x 1.5 mm thickness, bottom cup 150 x 15 x 1.2 mm thickness , ventury for bag filter of immediate surge hopper, moc: aluminium, thickness: 2 to 3 mm minimum.