... no.NamePictureDescriptionAbasic type Tickness:4.5mmBwith inner ring 1.Tickness for Inner ring:CS(3.2MM) 2 ... made asbestos,teflon and non-asbestos paper.Technical data sheet Temperature RESISTANCEPRESSURE RESISTANCEGASKET COEFFICIENTMin.pre-tightening specific pressureMax ... processing industry.Hot acetic and citric etc.Order Progress:1,contact us,show your requirements2,Quotation3,Production4,Quality ...