建筑施工机械与设备 混凝土输送管 连接型式和安全要求
Building construction machinery and equipment—Concrete delivery pipes—Connection types and safety requirements
标准状态
发布于：2026-01-28
实施于：2026-08-01
废止
基本信息
内容预览
Building construction machinery and equipment—Concrete delivery pipes—Connection types and safety requirements