supply of cast or forged carbon steel globe valves and gate valves , wheel operated 08 mm forged carbon steel globe valves as per the tender specifications . class 800# , socket weld ends , wheel operated 15 mm forged carbon steel globe valves as per the tender specifications class 800# , socket weld ends , wheel operated 25 mm forged carbon steel globe valves as per the tender specifications class 800# , socket weld ends , wheel operated 50 mm forged carbon steel gate valves as per the tender specifications class 800# , socket weld ends , wheel operated 80 mm cast carbon steel gate valves as per the tender specifications class 150# , flanged & drilled ends , wheel operated 100 mm cast carbon steel gate valves as per the tender specifications class 150# , flanged & drilled ends , wheel operated 250 mm cast carbon steel gate valves as per the tender specifications class 150# , flanged & drilled ends