In fact,this "blast wall" is actually a portable JOESCO flood wall,which was used for military purposes in Egypt due to its easy operation and other advantages.

  This kind of flood wall has a unique material "sandbag" structure on the basis of its strength,which allows the flood wall to be filled not only with big stones,but also with sand.

  This is convenient for building flood wall based on local materials in flood control,which has been widely used in Europe and America.