Ultrasonic Water Meter, Heat Meter, Gas Meter manufacturer / supplier in China, offering Factory Direct Mini Electric Water Ball Valve 2-Way Stainless SS304 Customizable OEM for General Applications, Movafafh 3/4" Motorized Ball Valve with Function - 9-24V DC Full Port Electric Water Valve, 3 Wire 2 Point Electrical Ball Valve, Stainless Steel, 2 Way 1/2" DN15 Modbus Communications RS 485 Modulating UPVC Proportional Valve and so on.