American Gage & Machine Co.Illinois, United States
Fuzhou Linong Environmental Protection Technology Co., Ltd.
Shanxi Fengxi Huarui Coal Chemical Industry Co. Ltd.
Tianjin Oupan Technology Development Co., Ltd.
Zhejiang Lianhe Qihua Knitting Co., Ltd.
Yuxi Normal University
Minth Automotive Technology Research & Development Co., Ltd.
Tungga Linen&Cotton Co., Ltd.
CRRC Qishuyan Institute Co., Ltd.
Nikko Seisakusho KK
ZYS INTERNATIONAL CO.,LTD.
Ingenjrsfirman J Mared AB