Hochschule Trier
Beijing Qiushi Engineering Manage Co. Ltd.
Disphar International BVUtrecht, Netherlands
Ibis Systems, Inc.
MDF Italia Srl
Huangqiu Valve Group Co. Ltd.Zhejiang Sheng, China
Weidmann Plastics Technology AG
Huahe Group Huahe Furniture Co. Ltd.
Manlei Precision Ltd.
USAUS Holdings LLC
Shanxi Aerospace Tsinghua Equipment Co., Ltd.
China Coal Yangtze River Infrastructure Construction Co., Ltd.Jiangsu Sheng, China