China Custom Polycarbonate Green House Frame Structure Tunnel Green Houses Kit for Planting

China Custom Polycarbonate Green House Frame Structure Tunnel Green Houses Kit for Planting. Customizable Dimensions: Section/Bay sizes of 4m or 8m, with gutter height 3-6m and total height 3.7-6.7m. Durable Galvanized Frame: Hot-dipped galvanized steel frame structure ensuring over 15 years of service life. High Light Transmittance: PC-sheet covering provides >80% light transmittance with excellent thermal insulation. Strong Wind Resistance: Stable structure designed to resist heavy rains and strong winds effectively. Integrated Shading System: Equipped with both inside and outside shading systems for optimal climate control. Advanced Ventilation: Side and roof ventilation systems actuated by gear motors for precise air control. Professional Installation Support: Free installation drawings and manuals; engineers available for on-site supervision. ISO 9001 Certified Quality: Manufacturing complies with International Quality System ISO 9001: 2008 standards.