Hangzhou gsignal technology CO.,LTD.is a research and development, production, maintenance and service in one of the high-tech enterprises, the company is committed to the construction of rail transit system for the construction of rail transport to provide first-class, cost-effective products, Traffic intelligent positioning, rail transit signal communication system, rail transit communication control system, high-speed rail EMD TPDS detection system, intelligent factory project and industrial automation and control system. Company rail transportation business covers subway, light rail, tram, intercity line, high-speed railway and other fields.