Three-Dimensional Engineering: Announcement Regarding the Holding Subsidiary Receiving a Patent Certificate

Shandong Sanwei Petrochemical Engineering Co., Ltd. (hereinafter referred to as the "Company") recently received one Invention Patent Certificate issued by the National Intellectual Property Administration of the People's Republic of China from its controlling subsidiary, Qingdao Lianxin Catalytic Materials Co., Ltd. Details are as follows:

Release date:

2019-04-24

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