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Check Valve Check valve is to rely on the media itself to automatically open and close the valve, used to prevent the media back to the valve, also known as check valve, check ...

Needle Valve Needle valve is a precise adjustment of the valve, the use of a wide range, such as flame cutting with the cut, adjust the flame temperature knob is the needle valv...

Valves A device used to control the direction, pressure, and flow of a fluid in a fluid system is a means for flowing or stopping the medium (liquid, gas, powder) in the piping ...