1.Check the Aluminum Material Production Factory qualification certificate, pay attention to the date of production, specification, technical conditions, enterprise name and production license number.
2.Look at the Aluminum Slug surface carefully, products should be bright color, good gloss, the surface can not ave obvious scratches, bubbles and other defects.
3.We must pay attention to product wall thickness, door and window material thickness shuld be no less than 1.0mm.
4.Users in coastal areas should choose electrophoretic coating profiles, powder spraying profiles or fluorocarbon spray profiles for better corrosion resistance.
5.Daily maintenance can not use brushes and other hard objects as cleaning tools, should choose soft cotton yarn and cotton cloth.
6.You can wash with water, detergent and soap, but not with other organic substances.