According to Dinggu JiChuang's announcement, the company recently received an “Invention Patent Certificate” issued by the State Intellectual Property Office. The patent name is “a value selection method, stress verification method and system for composite panels”. The patent number is ZL 2022 1 1559448.8. The patent application date is December 6, 2022, the authorization announcement date is October 9, 2026, and the patentee is the company. The patent was independently developed and obtained by the company. The technology and application areas involved are related to the company's products, and will not have a significant impact on the company's recent production and operation. It is conducive to improving the company's intellectual property protection system and enhancing core competitiveness.

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