Jiangsu Dianke Electrical Equipment Co. Ltd.Jiangsu Sheng, China
HUACHUANG ROBOT MANUFACTURING CO.,LTD.
Ningbo Meijingkang Environmental Technology Co., Ltd.
Chongqing Hewei Technology Co., Ltd.
Beijing Zhishu Technology Co., Ltd.
Yichang Ruichuan Optoelectronics Technology Co., Ltd.
Arakawa & Co. Ltd.Japan
Cracow University of Technology
AZ Gomma Ricambi SRL
J.W. Spear & Sons Ltd.BERKSHIRE, United Kingdom
China Communications First Navigation Bureau Fifth Engineering
Beijing Yiyangheng Railway Information Technology Development Co., Ltd.