
- Shanghai Winner Optoelectronics Technology Co., Ltd.
- Distance Laser Sensor, Total Station, Theodolite, Auto Level, GPS, Tripod for Total Station Theodolite, Prism for Total Station, Prism Pole, Data Cable for Total Station, Battery for Total Station
Shanghai

- Geomaster Group
- Surveying Instrument, Surveying Equipment, 3D Laser Scanner, Automatic Level, Electronic Theodolite, Total Stations, Surveying Tripods, Leveling Staffs and Rods, Monitoring Prism, Laser Distance Meters
Tianjin

- Tianjin Unique Technology Co., Ltd.
- GNSS RTK Receiver, GNSS Receiver, GNSS Antenna, Handheld GPS, Total Station, Theodolite, Auto Level, GNSS Auto Steering System for Agriculture
Tianjin

- Tianjin Shengxinqi Instrument Co., Ltd.
- Surveying instrument
Tianjin