Group 1 - Gansu Jiugang Group Hongxing Steel Co., Ltd. applied for a patent for a polishing process for medium-thick stainless steel plates, aimed at improving grinding efficiency and surface quality [1] - The patent application was published under CN120480761A, with an application date of June 2025 [1] - The process involves semi-wet grinding during rough grinding and full-wet grinding during fine grinding, increasing grinding efficiency by 20-30% and achieving a surface roughness of 0.45-0.65µm [1] Group 2 - Gansu Jiugang Group Hongxing Steel Co., Ltd. was established in 1999 and is primarily engaged in black metal smelting and rolling processing [2] - The company has a registered capital of approximately 626.34 million RMB [2] - It has invested in 36 enterprises, participated in 5000 bidding projects, and holds 2788 patent information along with 25 trademark information [2]