一个建筑工地,其中有各种直径的混凝土管道,用于供水系统。管道已准备好安装,展示了重要的基础设施建设 库存图片 一个建筑工地,其中有各种直径的混凝土管道,用于供水系统。管道已准备好安装,展示了重要的基础设施建设
A construction site featuring various diameters of concrete pipes arranged for water supply system the are ready installation 库存照片 a construction site featuring various diameters of concrete pipes arranged for water supply system the are ready installation