Cold Bending Galvanized C Channel Steel For Solar Energy Systems C-section purlin is mainly used for commercial applications, but it is also suitable for smaller type garages and carports. Adopting advanced galvanizing technology, make the appearance of beautiful, has the property of anti corrosivewear-resisting,increasing the utilization rate of the product and service life. The related products of solar energy support system are made of carbon steel and stainless steel. The