Materials commonly used for greenhouse frames are galvanized pipes.

Galvanized steel pipes, also known as galvanized钢管, are available in two types: hot dipped galvanized and electro galvanized. Hot dipped galvanized pipes have thick zinc coatings, offering uniform coating, strong adhesion, and long service life. Electro galvanized pipes are cost-effective but have a rougher surface and are much less corrosion-resistant than hot dipped galvanized pipes.