Beijing Zhengling Science & Technology

Zhengling ?oasis? sheet drain is a two-part prefabricated soil sheet drain consisting of a formed polystyrene / polyethylene core covered with a non-woven needle-punched polypropylene geo-textile filter fabric bonded to the dimple side of the core. The fabric allows water to pass into the drain core. The core allows the water to flow to designed drainage exits. [详细介绍]