Tender For procurement of gate valves for hp and lp frs and ibd cbd and superheater drain - vv , ga api 600 , bw , wcb , mo , cl1500 , 150mm , vv , ga api600 , bw , a217-c12 , mo , cl1500 , 80mm , vv , ga api 600 , bw , wcb , mo , cl1500 , 65mm , vv , ga api600 , bw , wcb , mo , cl900 , 80mm , vv , ga api 600 , bw , wcb , mo , cl900 , 50mm