... operational lift,good waterproof,drainage,anti-seepage and damp proof effects,complete width and thickness specifications,low cost and simple ... (man-made lake,river way,cistern,bottom lining and side slope of pool in golf course,waterproof and anti-seepage ... and shrimp pool,side slope of sea cucumberring,etc.). 10.Salt industry (crystal tank of salt field,tarpaulin cover of halogenation tank,salt ...