Requirements and delivery and reception conditions of concrete paving blocks.
混凝土铺路砖的要求、交付和接收条件

2007-09-12

Requirements and delivery and reception conditions of aggregate concrete masonry units (dense and light-weight aggregates). National complement to the standard UNE-EN 771-3.
骨料混凝土砌块（密实和轻质骨料）的要求、交付和接收条件 国家对标准UNE-EN 771-3的补充

2008-04-09