The frame structure of the greenhouse is much more important than the material used as the wallboard, but an inappropriate frame material may mean an unsteady frame structure that will never really be square. It is very difficult to successfully complete a greenhouse unless the original frame is properly built. Once you complete it, you may find that it has cracks and openings which are difficult to seal against insects and small animals.
Some greenhouses are sold in packages that don't give you any choice of the framing materials, but if you are building a custom greenhouse, you can choose the framing materials. Generally, the galvanized steel pipe is the most suitable for the greenhouse.
Specification of Tianchuan Greenhouse Pipe:
DN15-200 round pipe
Raw Material of Tianchuan Greenhouse Pipe:
Q195 Q215 Q235 Q235B
Application of Tianchuan Greenhouse Pipe:
conveying low-pressure fluids such as water, air, heating steam and gas; structural use such as machinery and construction
Executive Standard of Tianchuan Greenhouse Pipe:
GB/T 3091-2015 "welded steel pipe for low-pressure fluid transportation" GB/T 13793-2016 "straight seam electric welded steel pipe" Q/HBTC 001-2016 "welded steel pipe".