Zhejiang Jinyun County Tianhuang Industry Co. Ltd.
Wenzhou Vocational College of Science and Technology
Ruian Yicheng Auto Parts Co., Ltd.
Durr Production Systems, Inc.
Yinchuan Western Dasen CNC Technology Co., Ltd.Ningxia Huizi Zizhiqu, China
Nippon Calmic Ltd.
American Science & Engineering, Inc.Massachusetts, United States
Rauma Materials Technology OyFinland
Hubei Nantian Tool & Mould Technology Co., Ltd.Hubei Sheng, China
Heixuanfengjuye Co. Ltd.Shandong Sheng, China
Changzhou Xiaqing Technology Co., Ltd.Jiangsu Sheng, China
Hui Bao Enterprise Co. Ltd.Taiwan Province, China