- Boerstn Electric Co., Ltd.
- Electrical Instruments
China
- Zhengzhou Huadong Cable Co., Ltd.
- The wire
China
- Shanghai Lanbao Sensing Technology Co., Ltd.
- sensor
China
- Anhui Qidian Automation Technology Co., Ltd
- Main products: Signal Isolator/Safety Barrier; Electric Transducer/Liquid Level Trans
China