山东海化(000822.SZ)：公司研发部门在一种COFs材料制备方面申请了相关专利
SDHH(SZ:000822) Ge Long Hui·2025-10-13 07:21Group 1 - The company Shandong Haihua (000822.SZ) has applied for relevant patents in the preparation of a type of COFs material through its R&D department [1]
SDHH(SZ:000822) Ge Long Hui·2025-10-13 07:21