One of the criteria for a good ceiling; Fine selection of materials, such as aluminum-magnesium alloy is generally used as the base material of aluminum plate, and recycled aluminum and iron sheet cannot be used as inferior materials. Roller coated board is superior to coated board, which will change color and delaminate after long-term use, and the thickness should be 0.5-0.7 mm. Good gusset plates made of other materials should also be odorless, smooth and easy to clean, moisture-proof and not discolored.

The second standard of a good ceiling; Beautiful artistic appearance: With the artistry of home life, the ceiling is no longer either gray or white, and the artistic ceiling has become the standard of a good ceiling.

The third standard of good ceiling; Good utility of electrical appliances: Good core accessories of electrical appliances should be original famous brand manufacturers, boxes must be environmentally friendly materials, and polluted recycled plastics cannot be used. Electrical appliances should be practical and reasonable in structure.