Shenzhen Tongyong Technology Co., Ltd.
[ Manufacturer Trader ]Main business are Different kinds of emergency type explosion-proof ( non- explosion-proof ) mobile digital working light as well as explosion-proof outdoor strong light SPOT-LIGHT working light and matched electrical appliance and light source line products.
Harbin Industry Unversity Yuanguang Photoelectric Instrumen
[ Manufacturer ]Main business are Photoelectric instrument, Lighting appliance