Tianhai smooth HDPE geomembrane is produced from high-grade polyethylene resin produced by foreign and domestic large petrochemical enterprises by three-layer pressing and plastic formation technology and double layer pressing and rolling technology. The company is the only enterprise that uses the two technologies to produce earthwork film in the same industry. The company has plastic formation experience for more than twenty years, makes close cooperation with earthwork builder, makes continuous innovation, seeks perfection, and makes great efforts in providing the most reliable products to the customers.