Durable Multi-Span Agricultural Polytunnel Greenhouse
High-strength UV-resistant polyethylene film ensures 3-5 years of weatherproof performance, blocking 90% of harmful UV rays while optimizing light diffusion for plant growth. Reinforced steel frame with anti-corrosion galvanized coating supports heavy snow loads up to 25kg/m² and wind speeds of 60km/h. Modular design allows customizable width/height (6-30m span, 2-5m eaves) for fruits, flowers, or veggies. Ventilation windows and roll-up side films provide precise humidity/temperature control (30-80% RH). Ideal for commercial berry farms, organic nurseries, or year-round hydroponic systems. Bulk orders include free shipping and on-site assembly guides. Wholesale pricing starts at $XX/m² (MOQ 100 units).