1, view the product certificate, note date of production, specifications, technical specifications, business name and license number.
2, must pay attention to the thickness of aluminum products, product thickness of doors and Windows shall be not less than 1.2mm.
3, look at the surface condition of the products, product should be bright, glossy, surfaces cannot have obvious defects such as scratch scratch, bubbles.
4, pay attention to the product's surface the thickness of the coating, Anodic aluminum oxide film thickness is not lower than 10 μ m, electrophoretic coating aluminium profiles thickness not less than 17 μ m, powder spray coating thickness does not exceed 40-120 μ m range, fluorocarbon coating products should be more than two painting, cannot be less than 30 μ m.
5, when routine maintenance, you can't use other hard objects as cleaning tools such as brushes, select soft cotton yarn and cotton cloth.
6, cleaning water, dish detergent and SOAP, but not with other organic materials.
7, users of the coastal area, the best choice for better corrosion resistance of electrophoretic coating aluminium profiles, powder coated aluminium or PVDF coating aluminum products.
