Dimple drain sheet has through professional mechanical structure design, it has convex platform wall thickness, and
accompanied by reinforcement structure, high compressive strength, good flexibility, good drainage prevent not degrade.
After through hot melt welding, resistance of plant puncture, acid and alkali resistance, ageing resistance and it is for
building waterproof formation of flexible protection, making whole waterproof layer enclosed space inside in the long run,
not easy ageing. Greatly extend the use age of the waterproof layer.