3. UV Resistance Prolonged exposure to UV radiation can degrade roofing materials over time. Cap sheets are engineered to withstand UV rays, maintaining their integrity and appearance while prolonging the lifespan of the underlying roofing materials.
The factory process behind metal lunch boxes often involved a series of intricate steps. First, the raw materials were sourced and cut into the appropriate sizes. Next, the metal sheets underwent printing, where vibrant colors were applied to create eye-catching designs. The pieces were then shaped, bent, and fused together, creating a sturdy construction that could withstand the rigors of daily use. Finally, a protective coating was applied to guard against rust, ensuring these lunch boxes would endure for years.
