1.material:PTFE vrigin or recycle 2.diameter:6-200mm 3.length:100mm,200mm,500mm,1000mm etc 4.quality:no air hole 1.Main properties:Special gravity :2.10 ~ 2.30 g/m2 Hardness: 51 ~ 60 Shore DTensile strength:14.0 MPaUltimate elongation :140% 2.Chemical properties:a.aging resistanceb.radiation resistancec.low permeabilityd.high press resistancee.anti-corrosion,anti-volatilizationf. lubricative