
- Shanghai Rui Tai Photoelectric Technology Co., Ltd.
- Optical Lens, Optical Windows, Laser Windows, Fused Silica, Optical Prism, Optical Glass, Sapphire Window, Aspheric Lens, Spheric Lens, Optical Mirror
Shanghai

- DongGuan Dason Electric Company
- Solenoids, Push and Pull Solenoid, Electromagnet, Micro Switch, Push Button Switch
Guangdong