Functions: penetrative protection, isolation Application: Earthwork dam, rock-fill dam, masonry dam and concrete dam; horizontal impervious blanket of embankment and dam front, vertical impervious barrier of foundation; tailing dam, dam body and reservoir region of sewage reservoir; construction cofferdam; canal, liquid bath (pit, coffin pit); waste storage; seepage control lining for subway, basement and tunnel; roadbed of speedway and railway; salting prevention of roadbed and other foundation; waterproofer of swelling soil and collapsible loess; roofing leak resistance Products: Two-side seepage control membrane and one preventive geotextile; one-side seepage control membrane and preventive geotextile. Width: 4-6m Specification: membrane thickness 0.2mm-0.8mm; protective geotextile 100g/m2-800g/m2 (produced by our factory, conforming to the related national standard).