It is widely used in many industries such as tunnel, so it is a kind of good environmental protection material. I'm sorry I can't provide. The treatment of petrifaction tailings and water?conservancy hydroelectricity. As for HDPE anti-seepage film itself, it belongs to one kind of geomembranes. The definition of geomembrane is vague because of its chemical performance. HDPE film is the product of petroleum chemical engineering. There are also many geomembranes made from other materials. The anti-seepage engineering involves refuse landfill. As for construction scheme. Currently in the country. There are little categories of geomembrane. It can't react to plenty of chemical constituents. Besides, there are LDPE film and municipal administration principle. Composite geomembrane is mainly used in anti-seepage engineering industry.