片语
impervious concrete wall防渗墻
impervious performance of concrete completely混凝土抗渗性能
impervious wall concrete防渗墻混凝土
impervious concrete face面板防渗
concrete impervious混凝土防渗
impervious asphalt concrete沥青防渗
impervious reinforced concrete face-slab钢筋混凝土防渗面板
Impervious asphalt concrete technology沥青混凝土防渗技术
high impervious anticorrosion concrete高抗渗耐蚀混凝土