China has more than 10,000 km of operating metro lines and more than 150,000 km of operating railways. The continuous operation of these lines forms the pulse of each city; and the galloping trains support the largest migration in human history. All this cannot be realized without an invisible technical force - the rail transit signaling system.

CASCO, founded in 1986, has more than 30 years of technical accumulation in the R&D of rail transit signaling systems, and has witnessed and accompanied the rapid development of China's rail transit industry all the way. Recently, CASCO appeared in CCTV's "Traffic Exploration" documentary, which demonstrates the remarkable decade of China's rail transportation development through an in-depth analysis of the technical evolution of signaling systems, as well as a series of technical innovations and benchmark projects completed by CASCO.