Our company selects imported native resin as raw material for the production of geomembrane, adds carbon black, anti-aging agent, anti-ultraviolet absorbent, stabilizer and other auxiliary materials, and is produced by three-layer co extrusion blow molding technology. It is a waterproof and barrier engineering material. It has excellent environmental stress cracking resistance, low temperature resistance, aging resistance and corrosion resistance, as well as a wide temperature range (-60--+60) and a long service life (more than 50 years).