Gem Bids Forsluice Valve For Water Works Purposes (50 To 1200 Mm Size) (v2) As Per Is 14846 (q3) , Swing Check Type Reflux Valves For Water Works Purposes (single Door Pattern) (v2) As Per Is 5312 (part1) (q3) , Foot Valves For Water Works Purpose As Per Is 4038 (latest) (q3)
