Swing Check Valve Flange End 150LB

In high-rise buildings, people often worry about the lack of new air volume, and designers often feel very aggrieved. Because from the drawing point of view, fresh air standard value is not low, but w ...

2-PC Vertical Check Valve 800WOG(PN40)

In high-rise buildings, people often worry about the lack of new air volume, and designers often feel very aggrieved. Because from the drawing point of view, fresh air standard value is not low, but w ...

Single Door Wafer Check Valve PN10-40

At present, China's various industries commonly used in the production of valve metal valves, metal valves for use has been a century of history, during which although improved through structure and m ...

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