Beijing Dadi Tongfeng Technology Co., Ltd. was established in 2007. It is a comprehensive technology company specializing in wireless communication systems, information control, and security control in the rail transit industry. It is one of the designated long-term suppliers of China Railway Corporation and the general agent and after-sales service center of Funkwerk Systems GmbH in China, a long-term strategic partner and cooperative after-sales service station of HaslerRail AG in Switzerland, a long-term partner of Pixy AG in Switzerland, and a long-term cooperative agent of Gersys GmbH in Germany.

The company's business scope involves on-board equipment for high-speed rail and subway trains, including data communication modules, voice modules, data/voice radios, judicial/event recorders, speed sensors/coded odometry, human-machine interaction interface displays (HMI, DMI, MMI), track ground equipment, American AFAR brand, etc. Covering comprehensive services such as pre-sales, after-sales, installation and debugging, as well as industry application integration services and information technology services.