Founded in 1999, Shenzhen Tongye Technology Co., Ltd. is a state-level high-tech enterprise. For more than a decade, it has been committed to the development and production of power, electronics and network control products for rolling stock, urban rail and subway. Through continuous independent innovation, it has formed two major categories of power supply and network control. The products involve power system, control and monitoring system TCMS, control equipment, test equipment, sensors, electrical connectors and so on.