valves manual the production process used valve control system |
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| navigate by keyword : blue close control construction controller damage detail device dirty energy engineering fuel gas generation ground hand handle industrial industry iron line manual metallic object oil old open operation pipeline power process production pump raw repair replace rig rust safe station steel stress supply system transfer transportation valve water wheel valves used operator function controlled pressure flow rate |
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| Valves manual in the production process. Production process used manual valve to control the system, Operator open and close or function the valve for controlled pressure or gas and oil flow rate. |
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