
Changzhou Chentong Telecommunication Equipment FactoryJiangsu Sheng, China

G&P Conpany Ltd.

Ningbo Yinzhou Yiwang Electronic Technology Co., Ltd.Zhejiang Sheng, China

Jiangsu Institute of Acoustics, Vibration and Acoustics Technology Co., Ltd.

Xinjiang Keli Machinery Equipment Co., Ltd.Xinjiang Uygur Zizhiqu, China

Beijing Hexagon Technology Development Co., Ltd.

Siemens Shinwha Co., Ltd.

Golden Dianshi (Beijing) Architectural Design Consulting Service Co., Ltd.Beijing Shi, China

Rexgen Co. Ltd.

Northern Ruineng (Inner Mongolia) Group Co., Ltd.Nei Mongol Zizhiqu, China

SieWa Metallwarenfabrik GmbHGermany

Zhengzhou Shengda Economic and Trade Management College