Petritech, Inc.
Chengdu Fourier Electronic Technology Co., Ltd.
Shandong Yike Energy Saving Technology Co., Ltd.
Tianjin Haiguang Pharmaceutical Co., Ltd.
Shengzhou Zhiyuan Welding Products Co. Ltd.
Nanjing Hongzhong Electronic Technology Co., Ltd.
Zhangjiagang Chenggong Hardware Tools Co. Ltd.
Shanshan Co., Ltd.
Chengdu Zero Light Quantum Technology Co., Ltd.
Hubei Jianghua Machinery Co. Ltd.
Okb Co. Ltd.
Constantia Teich GmbH