Cs gate valve size 6 inch rating 150,cs gate valve size 2 inch rating 150,cs gate valve size 8 inch rating 150,cs gate valve size 10 inch rating 150,forged carbon steel gate valve size 1 inch rating 800,cs gate valve size 4 inch rating 150,forged carbon steel gate valve size 0.75 inch rating 800,forged carbon steel gate valve size 0.5 inch rating 800 non ibr