一种具有高低温冲击韧性Q690D钢板及其生产方法

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广西柳钢取得具有高低温冲击韧性Q690D钢板及其生产方法专利
Jin Rong Jie· 2025-08-02 06:21
Group 1 - Guangxi Liuzhou Iron and Steel Group Co., Ltd. and its subsidiaries have obtained a patent for "a Q690D steel plate with high and low temperature impact toughness and its production method," with the patent announcement number CN116334488B, applied on March 2023 [1] - Guangxi Liuzhou Iron and Steel Group Co., Ltd. was established in 1981, located in Liuzhou, primarily engaged in black metal smelting and rolling processing, with a registered capital of 568,983,000 RMB [1] - The company has invested in 49 enterprises, participated in 5,000 bidding projects, holds 175 trademark records, 722 patent records, and possesses 358 administrative licenses [1] Group 2 - Liuzhou Iron and Steel Co., Ltd. was established in 2000, also located in Liuzhou, primarily engaged in black metal smelting and rolling processing, with a registered capital of 256,279,320 RMB [1] - The company has invested in 3 enterprises, participated in 5,000 bidding projects, holds 6 trademark records, 1,329 patent records, and possesses 525 administrative licenses [1] Group 3 - Guangxi Liugang Huachuang Technology Research and Development Co., Ltd. was established in 2020, located in Nanning, primarily engaged in technology promotion and application services, with a registered capital of 10,000,000 RMB [2] - The company has participated in 2 bidding projects, holds 95 patent records, and possesses 2 administrative licenses [2]