annual maintenance of roads in sector 1, 2, 4, 5, 5b & 6 mdc, panchkula ( supply of ci specials i.e. mechanical collar and sluice valves and all other works contingent thereto ) - 1 n.s. itemsupply of ci mech joint collar 4 isi marked as per specification complete in all respectd as per entire satisfaction of eic. 2 n.s. itemsupply of ci mech joint collar 6 isi marked as per specification complete in all respectd as per entire satisfaction of eic. 3 n.s. itemsupply of ci mech joint collar 8 isi marked as per specification complete in all respectd as per entire satisfaction of eic. 4 b1273c.i. sluice valve ( with caps ) class i : 125 mm dia 5 b1275c.i. sluice valve ( with caps ) class i: 150 mm dia 6 b1276c.i. sluice valve ( with caps ) class i : 200 mm dia 7 20.11.3providing & fixing cast iron double flanged swing check type reflux ( non return ) valves pn-1.6 marked with is:5312 including nuts & bolts marked with is:1363, rubber sheet marked with is:638 etc., carriage loading, unloading, stacking, handling, re-handling etc. complete in all respect to the satisfaction of engineer-in-charge.20.11.3 150 mm i / d