Greenhouses have consistently represented a manifestation of facility agriculture development in recent years, with solar greenhouses and film greenhouses being the two most commonly constructed types. Their low cost, wide applicability, and short construction周期 have made them highly favored by growers. However, the film is a crucial component of greenhouse materials. Poor-quality films need to be replaced annually, and they often underperform in terms of light transmission and anti-drip effects. Imported products are expensive, increasing initial investment, so there is a need for domestically produced films that meet quality standards for replacement. PEP film and Fenggu film are currently widely used, differing from ordinary films mainly in that they utilize entirely new raw materials without recycled content. Through three-layer co-extrusion technology, the chemical stability of the film is enhanced, resulting in better performance.Currently, the common practice domestically is to import raw materials for local production, ensuring good quality, competitive pricing, and overall manageable investment costs.