Hot-dip galvanized round pipe is a common steel pipe product, which is made by hot-dip galvanizing the surface of ordinary steel pipes. The manufacturing process of hot-dip galvanized round pipe is to immerse the steel pipe in the molten zinc solution to form a layer of zinc layer, which can protect the surface of the steel pipe for a long time, there by prolonging the service life of the steel pipe.Hot-dip galvanized round pipe has the characteristics of anti-corrosion, wear-resistant, corrosion-resistant, and anti-oxidation, and is widely used in construction, machinery, chemical industry, electric power and other fields.