The SCB12, SCB14 and SCB18 types of products are new products developed on the basis of fully absorbing the advanced technologies of many similar products from both domestic and foreign sources. These products have strong resistance to thermal shock, are flame retardant, have high fireproof performance, low loss, small local discharge quantity, low noise, do not produce harmful gases, do not pollute the environment, are insensitive to temperature and dust, have small volume, do not crack, and are simple to maintain. Therefore, they are suitable for important places with high fire protection requirements, such as airports, subways, power plants, metallurgical industries, hospitals, high-rise buildings, shopping malls, densely populated residential areas, as well as in special environments such as petrochemicals, nuclear power plants, nuclear submarines, etc.