青龙管业(002457.SZ)：签订水泥制品采购合同

Group 1 - The core point of the article is that Qinglong Pipe Industry has been awarded a contract for the modernization project of the Ningxia Qingtongxia irrigation area, marking a significant development for the company [1] - The total amount of the signed cement product procurement contract is 87,338,168.00 yuan, which represents 3.10% of the company's audited operating revenue for the year 2024 [1]