Gem Bids For Procurement Of Spares Of Thermal Pressure Safety Valves For Gail Mansarampura Region, 5 Tsv 0.75inch 600 X 1inch 600 Flanged 98 Kg Per Cm2 Tsv 0.75inch 600 X 1inch 600 Flanged 49 Kg Per Cm2 Tsv 1.5inch 900 X 2inch 300 98 Kg Per Cm2 Tsv 0.75in Nptm X 1in Nptf 18kg Per Cm2 Lpg Psv 1inch 150 X 2inch 150 10 Kg Per Cm2 Inst Air