Zhuji Wansheng Machinery Co. , Ltd. , Founded In 1995, Engaged In The R&D And Production Of Clutch Booster, Vacuum Pressure, Pressure Regulating Valve, Loading Sensing Pressure Proportoining Valve, Button Valve, Gas Connector, PA11 Tube, PU Tube , PE Tube, Single/ Dual- Layer Spiral Tube And Seven- Core Cable.