fireproof,permanent flame retardant, resistant to high temperature Fire Retardant Meta-aramid Yarn 1) Composition:100%meta-aramid 2) Counts: Ne5s, Ne10s, Ne18s, ... Ne50s, Ne60s, etc. (single yarn and ply yarn) 3) Color: blue,white,ect.4) It has outstanding flame retardant property and will not ... dielectric materials, and various protective clothing. 6) Certificate: flame retardant certificate.