Gem Bids For Copper Alloy Gate Valve For Waterworks Purpose As Per Is778 Q3, Sluice Valve For Water Works Purposes 50 To1200 Mm Size V2 As Per Is 14846 Q3, Pvc Coppercable Single Core And Multi Core Circular Sheathed Cablewith Rigid Conductor V2 As Per Is 694 Q2, Cable Joint Kitv2 Q3