asphalt concrete central core dam
Asphalt Concrete Core Dam
asphaltic concrete core dam
draining water builds the dam material
over lean cemented material dam
composite resin core material
construction of impervious core
core material
核材料
磁心材料
芯层材料
堆芯材料
芯部材料
夹心材料
核﹝炉﹞心材料
磁芯材料
夹芯材料
辊芯材料
芯材物质
底层材料
器心材料
表心物
堤心石
芯材
囊心
芯板
core material and filter material joint anti-perme
core material distribution
core material of fireproofing doors