
Shandong Helida Technology Co., Ltd.

Ravens (Shenzhen) Technology Co., Ltd.

Jin-wook Choi

National Institute of Nanotechnology and Engineering

Dongguan Wanlian Industrial Co., Ltd.

Zhonglan Yima Chromium Chemistry Co. Ltd.

Chengdu Fengyi Precision Tool Manufacture Co. Ltd.

Anhui Xianyuan Food Co., Ltd.

Shenzhen Ruihua Construction Co., Ltd.

Hangzhou Handu Industrial Co., Ltd.

Ziguang Hengyue Technology Co., Ltd.Beijing Shi, China

Zhuzhou Huirui Additive Manufacturing Technology Co., Ltd.