Ultrasonic Water Meter, Heat Meter, Gas Meter manufacturer / supplier in China, offering Mini 2way WiFi Smart Valve with Smart Connector, DN15 DN20 DN25 Mini Motorized Ball Valve 2-Way Water Control Valve Manual Switch DC12V DC24V General Application OEM Supported, Original Factory 12VDC Irrigation 2 Way and 3 Way Motorized PVC Electric Ball Valve and so on.