Galvanized greenhouse pipes are divided into two types: hot-dip galvanizing and electro-galvanizing. The hot-dip galvanizing layer is thick and has the advantages of uniform coating, strong adhesion and long service life. The cost of electro-galvanization is low, the surface is not very smooth, and its corrosion resistance is much different than that of hot-dip galvanized pipes. The specifications of galvanized pipe can be 6-1200mm in diameter, 0.5-16mm in wall thickness, (4 minutes-16 inches in diameter, 0.5-150mm in wall thickness), and the longest length can be 12.8m; it can be used very conveniently. Above the greenhouse construction.