FNS（氟美斯混紡針刺氈 Fiber PTFE 基布 Weight 850 g/m2 material 100% FNS Air premeability 300-480L/m2/s Warp Tensile Strength 1800N/5X20cm Weft Tensile Strength 1800N/5X20cm After Treatment Singeing, heat setting Continue Working Temperature（ 250℃ Max. Working Temperature 280℃ Chemical Properties Anti-acid Good (好） Anti-alkali Good (好） Anti-oxidative Good (好）
