In the high-temperature areas of modern metallurgical steel, electrical machinery and other industries, the temperature-resistant fire-resistant casing made of glass fiber and silica gel has been widely used, but some front-line workers have found that it is a kind of consumption in the application of casing. When the casing of the product needs to be

A Novel Corona Virus pneumonia Novel Corona Virus Pneumonia, referred to as “NCP”, refers to pneumonia caused by the infection of 2019 new corona virus. Since December 2019, novel corona virus infection cases of acute respiratory tract infection have been confirmed by a number of cases of unknown pneumonia in Wuhan, Hubei, which have been