Nisco(SH:600282) Jin Rong Jie·2025-08-23 13:43Group 1 - Nanjing Iron and Steel Co., Ltd. has applied for a patent for a method using ultrasonic treatment technology to improve weld fatigue, with the application date being May 2025 [1] - The patent involves a multi-step process including weld information collection and analysis, adaptive ultrasonic treatment, effect evaluation and feedback, and post-treatment quality inspection [1] - The technology aims to enhance the effectiveness of weld fatigue improvement by allowing for real-time monitoring and adaptive adjustments during the treatment process, thus increasing stability and reliability [1] Group 2 - Nanjing Iron and Steel Co., Ltd. was established in 1999 and is primarily engaged in the black metal smelting and rolling processing industry [2] - The company has a registered capital of 616,509.1011 million RMB and has made investments in 58 enterprises [2] - Nanjing Iron and Steel has participated in 5,000 bidding projects and holds 4,626 patent records along with 18 trademark records [2]