常青机械取得汽车门后支架连续冲压模具专利
Group 1 - The core point of the article is that Hefei Changqing Machinery Co., Ltd. has obtained a patent for a "Continuous Stamping Die for Automotive Door Rear Bracket," with the authorization announcement number CN117340129B, applied on October 2023 [1] - Hefei Changqing Machinery Co., Ltd. was established in 1988 and is located in Hefei City, primarily engaged in the automotive manufacturing industry [1] - The company has a registered capital of 2,379.55857 million RMB [1] Group 2 - Hefei Changqing Machinery Co., Ltd. has invested in 26 companies and participated in 5,000 bidding projects [1] - The company holds 13 trademark information and 679 patent information, along with 18 administrative licenses [1]