Ultrasonic Water Meter, Heat Meter, Gas Meter manufacturer / supplier in China, offering 2 Way DN15 Motorized Brass Ball Valve for Air Conditioner, Water Treatment, Motorized Electric Ball Valve Two-Way Valve 1/2 3/4 1 Inch Size AC24V AC12V DC24V, 12V 24V 90 Degree IP67 Waterproof Rotary Electric Actuator Motorized Electric Valve Actuator and so on.