A C Roll Forming Machine is a mechanical device used to create C-shaped steel, offering high production efficiency, automation, precision, and a wide range of applications. It is crucial for walls and roof construction, maintaining structural integrity, and being suitable for load-bearing structures. C purlins, also known as Cee purlins, are horizontal beams with a C-shaped cross-section used to form wall and root joists of building shell structures. Both machines are user-friendly and provide a robust body structure.