Still Otto GmbH
C.M. Surface Treatment SpA
Jining Special Equipment Inspection and Research Institute
Anhui Changjiang Fine Silica Fume Co. Ltd.
Tianjin Tongtaicheng Technology Co., Ltd.
NC Segment Co., Ltd.
Westflische Wilhelms-Universitt Münster
Shengli Oilfield Gubang Petroleum Equipment Co., Ltd.
Changzhou Yongtao Vehicle Industry Co., Ltd.Jiangsu Sheng, China
NAIMCO, Inc.
DINO
Ningbo Antixi Cookware Co., Ltd.