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Geotextiles are widely used, but in order to meet the needs of various projects, the specifications of geotextiles are also increasing.

The purpose of geomembrane is to use its anti-permeability effect. Geomembrane should be impermeable to the molecular structure and manufacturing process. However, due to the unevenness and defects in manufacturing, the commonly used geomembrane must not leak. It's just that it is relatively difficult to permeate and what is more important is whether the geomembrane can maintain its anti-seepage performance under the action of long-term water head when it contacts the actual soil (or other materials). Due to the uneven contact surface, rough soil particles, large local deformation of the soil, etc., the geomembrane may be broken or torn under the action of high water head, and its anti-seepage performance will be lost or weakened. Therefore, corresponding anti-seepage tests are also required.

The anti-seepage geomembrane is made according to national standards and special requirements.

Before laying the composite geomembrane, it should go through the inspection of the excavation of the exhaust trench, and complete the finishing and leveling of the bottom and slope of the storage.

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