Longen(Tianjin)Technology Co.,Ltd is a high-tech enterprise in state-level. Longen passed ISO9000 certification,and was granted multiple inventions and new model patents. Longen acquired higher reputation in the industry. Main products include quick connectors、multi-connection system、new energy electric testing connectors & testing wiring harness、tool changer、& hydrogen refueling nozzle、and air tightness facilities,etc. Longen is dedicated to offer products and service with higher quality. Export goes to Germany、Italy、Spain、Brazil、Korea、India、Vietnam、etc. Customers mainly include Benz、BMW、Land Rover、Volvo、SAIC、BAIC、GAC、Greatwall、Geely,etc.