Although galvanized purlin is more expensive, it has the following advantages
1: Save the paint costs. No on-site paint needed.
2: Because there is no paint and does not pollute the environment, the production environment and the construction environment are tidier.
3: The anticorrosive effect is far greater than the spray-painted purlin.
4: The appearance is beautiful, concise and atmospheric. The surface is smooth and beautiful.
5: The galvanized strip is cold-rolled and slit, so the forming effect is better and the surface is flat.
6: The material is reliable and the service life is much higher than that of spray-painted purlin.