
Guardian Chemical Corp.

Hangzhou Muxing Technology Co., Ltd.

Nantong Deli Purification Equipment Factory Co., Ltd.Jiangsu Sheng, China

Liufeng Metal Technology Kunshan Co. Ltd.

Zhejiang Hailiye Technology Co. Ltd.

Qingdao Marine Biomedical Research Institute Co., Ltd.

Chang Guang Satellite Technology Co., Ltd.

Tianjin Yucheng High-tech Engineering Design Co., Ltd.Tianjin Shi, China

Yishuo Technology (Shanghai) Co., Ltd.Shanghai Shi, China

Shanxi Jingzun Crystal Technology Co., Ltd.Shanxi Sheng, China

Xinjiang Petroleum Administration Test Oil CompanyXinjiang Uygur Zizhiqu, China

Baodeng Technology Co., Ltd