中化岩土取得一种拼装式预应力管桩专利，可实现管节之间的快速对接以及解锁分离

Group 1 - The core point of the article is that China National Chemical Geotechnical Group Co., Ltd. has obtained a patent for a "modular prestressed pipe pile" with the authorization announcement number CN 223281309 U, applied on October 2024 [1] - The patent involves a design that includes upper and lower pipe sections, with specific features such as a protruding pad block and an L-shaped groove for assembly [1] - The company was established in 2001 and is based in Beijing, primarily engaged in civil engineering and construction, with a registered capital of 1.806 billion RMB [1] Group 2 - According to Tianyancha data, the company has invested in 22 enterprises and participated in 372 bidding projects [1] - The company holds 4 trademark registrations and 98 patent registrations, along with 40 administrative licenses [1]