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API 6D 2 PC Gear Operate Stainless Steel/Carbon Steel Floating/Trunnion Cast Ball Valve Gas Valve

API 6D 2 PC Gear Operate Stainless Steel/Carbon Steel Floating/Trunnion Cast Ball Valve Gas Valve
MAIN FEATURESPrinciple of the cast steel floating ball valve: This kind of ball valve has a floating ball supported by...

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