Product introduction：1. This series of elbow-connected seats do not contain copper and can be directly used in copper-forbidden environments;2. It has multiple specifications and can be used in various frequency radon monitoring systems;3. The circulation performance is excellent, and the flow rate of the same capacity can be passed through the chlorine pipe;4. It is convenient and quick to unplug and plug in the pipe, and the quick connection part of the radon pipe is safe, reliable and durable.