1. Check the product's factory certificate, paying attention to the factory date, specifications, technical conditions, enterprise name, and production license number.
2. Carefully inspect the surface condition of the product. The product should have bright colors, good luster, and no obvious scratches, bubbles, or other defects on the surface.
3. Be sure to pay attention to the wall thickness of the product, and the thickness of the door and window materials should not be less than 1.2mm.
4. Pay attention to the thickness of the surface coating of the product, and the film thickness of the anodized product should not be less than 10 μ m. The film thickness of electrophoretic paint products shall not be less than 17 μ m. The coating thickness of powder spraying shall not exceed 40-120 μ Within the range of m, fluorocarbon paint spraying products should be applied at least twice and not less than 30 μ M.
5. It is best for users in coastal areas to choose electrophoretic painted profiles, powder sprayed profiles, or fluorocarbon sprayed profiles with good corrosion resistance.
6. During daily maintenance, brushes and other hard objects should not be used as cleaning tools. Soft cotton yarn and cloth should be chosen.
7. When cleaning, water, detergent, and soap can be used, but other organic substances cannot be used.




