- Xi'an Yunyi Instrument Co., Ltd.
- Pressure Transmitter, Dead Weight Tester, Pressure Calibrator, Level Meter, Flow Meter, Density Meter, Pressure Gauge
Shaanxi
- Shanghai GL Environmental Technology Co., Ltd.
- Diaphragm Pump, Dosing Pump, pH Meter, Conductivity Meter, Flow Meter, Level Meter, Pressure Transmitter, Liquid Mixer, Chemical Pump, Dosing System
Shanghai
- Hebei Xukang Meter Manufacturing Co., Ltd.
- Level Gauge, Flow Meter, Relex Level Gauge, Sight Glass, Strainer and Filter, Glass Level Gauge, Level Meter, Magnetic Level Gauge, Sight Glass Flow Indicator, Level Switch
Hebei
- Huaibei Huadian Automation Technology Co., Ltd.
- Sensor, Transmitter
Anhui