Changde Vocational and Technical CollegeHunan Sheng, China
Jiangsu Caifa Aluminum Co. Ltd.
Chongqing Citizensong Technology R&D Center
Fritz Schomer Gesellschaft mbH
Weifang Qingte Axle Co. Ltd.
SOP Services, Inc.Nevada, United States
Hefei Kejing Material Technology Co., Ltd.Anhui Sheng, China
Xianwei Technology Co., Ltd.Guangdong Sheng, China
Huzhou Hongxin Silk Factory
Xuzhou Hezhuo Machinery Technology Co., Ltd.
K'NEX Industries, Inc.
Inner Mongolia Jiutai New Material Co., Ltd.Nei Mongol Zizhiqu, China