Patented technology
As of December 31, 2024, the company and its subsidiaries have obtained 132 patents, including 23 invention patents, 1 PCT international invention patent, and 108 utility model patents; 37 patents are under application, including 17 invention patents, 1 PCT international invention patent, and 19 utility model patents; related patents cover the professional production equipment, manufacturing technology, and processes of silica and carbon black.
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Address: No. 577, Luxing Road, Qingzhou City, Weifang City, Shandong Province
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