广州地铁取得大吨位转体桥球铰定位结构及施工方法专利

Group 1 - Guangzhou Metro Group Co., Ltd. has obtained a patent for a "large tonnage rotating bridge ball hinge positioning structure and construction method," with authorization announcement number CN119411498B, applied on December 2024 [1] - Guangzhou Metro Group Co., Ltd. was established in 1992, located in Guangzhou, primarily engaged in road transportation, with a registered capital of 58,425.39737 million RMB [1] - The company has invested in 106 enterprises, participated in 5,000 bidding projects, holds 75 trademark records, 1,432 patent records, and possesses 7,438 administrative licenses [1] Group 2 - China Railway (Guangzhou) Investment Development Co., Ltd. was established in 2017, located in Guangzhou, primarily engaged in capital market services, with a registered capital of 3,000 million RMB [2] - The company has invested in 8 enterprises, participated in 1,000 bidding projects, holds 221 patent records, and possesses 10 administrative licenses [2] - China Railway Guangzhou Engineering Bureau Group Bridge Construction Co., Ltd. was established in 2021, located in Jiangmen, primarily engaged in civil engineering construction, with a registered capital of 101 million RMB [2] Group 3 - China Railway Guangzhou Engineering Bureau Group Bridge Engineering Co., Ltd. was established in 2017, located in Guangzhou, primarily engaged in civil engineering construction, with a registered capital of 11 million RMB [2] - The company has participated in 1,814 bidding projects, holds 191 patent records, and possesses 46 administrative licenses [2] - China Railway Guangzhou Engineering Bureau Group Co., Ltd. was established in 2016, located in Guangzhou, primarily engaged in housing construction, with a registered capital of 305 million RMB [3] Group 4 - China Railway Guangzhou Engineering Bureau Group Co., Ltd. has invested in 83 enterprises, participated in 5,000 bidding projects, holds 1,379 patent records, and possesses 1,631 administrative licenses [3]