Covering material
1. Glass is available on the roof or the side of the greenhouse, thickness of which can be 4mm or 5mm.
2. PC(Poly-carbonate) sheet, hard and durable, anti-ultraviolet, can be available on the roof and the side of greenhouse, thickness of which are, for example, 8mm or 10mm.
3. Film, heat-preserving and durable, can be available on the roof and side of the greenhouse, thickness of which can be 8mm, 10mm, 12mm, 15mm, 20mm, etc. And more layers of the film can be used on the greenhouse.