Silicon calcium board ceiling keel is what material
Are generally metal keel! There are 38 main keel, T-shaped main keel, and vice keel.
Silica calcium board supporting the ceiling keel there are two: 1. Aluminum alloy keel, the surface is generally dust or paint; 2. Galvanized keel, the surface of paint. But the manufacturers use the material will be different, the quality is different. 38 or 50 light steel keel is installed according to the actual situation may be available or not.
The main dragon is generally 38 light steel keel, vice dragon and edge dragon and mineral wool board, are paint keel (iron). 38 light steel keel 8 keel of the national standard thickness is 0.8mm. Positive and negative tolerance is generally 0.02-0.03mm width is 38mm. You can go to check the information to understand the so-called light steel keel 38.50.75.100. Is their width. GB height is 10mm. Length is customizable. Generally 3m and 4m. Paint keel daily, the so-called paint keel, that is, iron paint keel, aluminum keel can also be called aluminum alloy keel, but for convenience, it said a few words, like the same as the United States, like short The So paint keel refers to the iron paint keel, aluminum alloy keel is called aluminum alloy keel.
The main dragon is generally 38 light steel keel, vice dragon and edge dragon and mineral wool board, are paint keel (iron).
