S312, 02S404 flexible and rigid waterproof sleeve

S312, 02S404 waterproof sleeves are mainly used under the working conditions where there is vibration or strict waterproof requirement at the place where the pipeline passes through the wall. On the one hand, it is conducive to the pipeline installation and removal, as well as anti seepage and anti leakage; on the other hand, It also protects the buildings from the damage caused by water and vibration.