Anhui Zhongjia Zhirui Technology Co., Ltd.Anhui Sheng, China
Fiber Logic Communications, Inc.
Jiangsu Province Tiemaodiandong Tools Co. Ltd.Jiangsu Sheng, China
Henan Linxiao Technology Development Co., Ltd.Henan Sheng, China
Geodynamics Research SRL
Niigata Seihan KKJapan
Hirokazu Sato
Zhengzhou Zhongtai Anke Powder Technology Co., Ltd.Henan Sheng, China
VKF Renzel GmbHNordrhein-Westfalen, Germany
Yanzhou Dongfang Electromechanical Co. Ltd.
Gansu Huitou Sand Control Technology Co., Ltd.
Zhejiang Jinrui Fiber Technology Co. Ltd.