Pavements constructed with clay, natural stone or concrete pavers - Code of practice for laying precast concrete paving blocks and clay pavers for flexible pavements

 
  • 粘土、天然石或混凝土铺筑材料铺砌的道路结构。柔性路面用预制混凝土铺砌块料和粘土铺筑材料的实施规范
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