The raw materials used in the production of roof sheet fixings are critical for their performance and durability. Commonly used materials include stainless steel, carbon steel, and galvanized steel, all of which provide resistance to corrosion and wear. Once the materials are selected, they undergo a detailed process that usually begins with cutting and shaping. Factories utilize a variety of machines, such as lathes, presses, and CNC (Computer Numerical Control) machines, to create precisely engineered fixings that meet the stringent demands of the roofing industry.