Is not allowed to use foam sandwich color plate
Hello! Now the state banned the use of foam sandwich color steel plate, also known as foam sandwich panels, because the foam sandwich board fire rating is poor, the state is prohibited. Now the market generally use rock wool color plate, which is used instead of rock wool composite board, fire rating up to A level. There are also some high-end customers with polyurethane color plates instead of using them, so the cost may be higher. Choose a most suitable for their own sandwich color plate can be used. After all, who is not the wind to the wind, the ability to do so
