Serimax Holdings
Chuanbei Vacuum Technology Beijing Co. Ltd.
Jiangsu Mudao Smart Home Co., Ltd.
Beijing Oriental Yunjia Technology Development Co., Ltd.
Eisenmann Frdertechnik GmbH & Co. KG
Shang Hai Hao Nian Dian Zi You Xian Gong Si
Linyi Xinghua Packaging Co. Ltd.
Tongxiang Yutong Electronic Technology Co., Ltd.
Shenyang Hualide Electronic Technology Co., Ltd.
Twenty Metallurgical Group (Shenzhen) Construction Development Co., Ltd.
Tianjin Water Transportation Engineering Survey and Design Institute Co., Ltd.
Jinhua Wanfeng Tools Factory