1. Structure: Hot galvanized steel pipe. 2. Covering material: PE, PEP or 3-ply Plastic Film. 3. Connect: All connects kits offred.No welding required. 4. Ventination: Natural Ventination on two sides manulled Controlled. 5. Charactors: Easy Frame, Easy Assembly& Ecomonical.Good for vegetable, tree, meshroom and poultry. Specifications: Model Width Section Size Length Height Wall Height Wind Load Snow Load LY6830T 6m 0.8m-1.5m 0-45m 2.8m-3.5m 1.2m 0.5KN/ m2 0.3KN/ m2 LY8132T 8m 0.8m-1.5m 0-45m 2.8m-3.5m 1.2m 0.5KN/ m2 0.3KN/ m2