... lake and reservoir dikes and banks,anti-seepage of canal,vertical central wall,side slope,etc.) 3. Municipal projects (underground ... lawn,etc.). 5.Petrochemical industry (ant-seepage of oil tank of chemical plant,oil refinery and filling station,linging of chemical reaction ... and anti-seepage of washing and selecting tank,piling and soaking tank,ash yard,dissolution tank,pile yard and tailing,ect.). 7 ...