... as follows :FMS,PTFE,NOMEX,METAMAX,PPS,P84,ect High temperature resistant Nomex needle punched filter felt In the field of ... . But in the high temperature occasion, such as chemical, carbon black (white carbon black) tail gas, blast furnace gas in irons melting ... that the flue gas is under the high temperature condition, which needs the high temperature resistant chemical fiber to make the filter ...