... 4.Various types Description of DACHENG PVC Water Stop PVC water stops are used in concrete joints subjected to ... hydrostatic pressures. After being embedded in concrete, PVC water stops fill up the joints to form a continuous ... structure such as Dams, Canals, Over Head/Under Ground Water Tanks, Swimming Pools, Basement, Bridges, Road Embankments, ... at required angle & shape DACHENG PVC Water stops