Description :
Tenders for Supply Of Valves - Manually Operated Ball Valve , Manually Operated Butterfly Valve , Electro Pneumatically Operated Propotional Ball Valve Of 100 Nb With Manual Over Ride , Electro Pneumatically Operated On Off Valve Of 100 Nb With Manual Over Ride , Electro Pneumatically Operated On Off Butterfly Valve Of 50 Nb With Manual Over Ride
