multi span polycarbonate sheet greenhouse

multi span polycarbonate sheet greenhouse, orchid greenhouse, pc panel greenhouse 1.Feature It's covered by polycarbonate sheet, which is featured for excellent warm keeping effect. 2.Framework Greenhouse is built with hot galvanized steel pipe, venlo type, garantee for 20 years. 3. Greenhouse size Standard span width: 7.2/10.8m Span quantity: For you option Length: For your option. Roof height: 3.5/4.37m 4. Covering material Monolayer or twin-wall or tri-wall polycarbonate sheet is optional, 4/6/8/10mm thickness. 5. Door Sliding door, alumnium alloy framework, covered by polycarbonate sheet. 6. Remarks Side or roof vent, cooling system, irrigation system, shade system, insect screen, heating system etc is also available.