Group 1 - Shanghai Yongmaotai Automotive Parts Co., Ltd. has obtained a patent for a "mechanical arm bolt extraction device" applicable to automotive parts, with the patent announcement number CN223172390U and application date of July 2024 [1] - The patent involves a technology related to automotive production, including components such as a workbench, driving components, and a locking device [1] - The company was established in 2003 and is located in Shanghai, primarily engaged in the automotive manufacturing industry, with a registered capital of 250 million RMB [2] Group 2 - Shanghai Yongmaotai Automotive Parts Co., Ltd. has made investments in 4 companies and participated in 5 bidding projects, holding a total of 98 patents and 148 administrative licenses [2]