bids are invited for service charges for overhauling maintenance of debris filter of size dn 2900 , service charges for overhauling and commissioning of coltcs of size dn 2900 , supply of cleaning ball for coltcs dia - 23 mm type medium colour blue, model 23 rb 20 m 0 make schmitz , ball recirculation pump oil leveler, part no. 12528 , man hole gasket for coltcs, part no. 51134 , ball separator bearings, o rings sleeves part no. 11307, 11310, 11311, 11329, 11330 , ball vessel o ring, part no. 11640 , ball strainer actuator, part no. 11323 , b.r.pump wear ring, part no. 42.3 , b.r.pump oil seal, part no. 43.3 , b.r.pump oil seal, part no. 43.13 , b.t. pump wear ring, part no.42.3 , b.t.pump oil seal, part no. 43.3 , b.t.pump oil seal, part no. 43.13 , loctite-2701 total quantity : 50028