Before molding, it is a coiled material. There are many models after molding. The most commonly used models are: Type 820, Type 840, Type 900 and so on! His composition is: protective film (now obsolete), polyester paint, galvanized layer, steel plate (separated cold-rolled plate and hot-rolled plate), the back of the same order! The above analysis does not represent authority!
There are many brands of color steel plates, with different strengths and weaknesses.
The use of general engineering can be divided into single board and composite board, composite board is divided into rock wool composite board and polyphenylene composite board. The use of veneers is mostly used for workshops or shelters; some veneers are also installed with rock wool, called "field compound". Composite plate type wallboard is mostly 950 type, and the top plate 970 type or 960 type is mostly. The veneers are usually 760, 820, 840, 900, 127 or 960. Among them, the 760 and 820 mounting methods are fixed with brackets, and other types are fixed with self-tapping screws. 760, 820, 840 are mostly used as top plates, more than 900 are used for wall plates, and 127 or 960 are used for wall plate or top anti-hanging plate decoration.
Color steel accessories are also integral to the project. Ridge tiles, inside corners, outside corners, door and window pockets, small gutters, expansion joints, etc., are often riveted and sealed.