PERFORMANCE 100% pure PTFE; Strong at high temperature; Chemical resistance; HIgh tenacity; Low shrinkage; High abrasion resistance; DATA density:1000den~2000den breaking force:40N~85N titre:400~360 tensile strength:≥4.0g/den or 36CN/tex heat resistance:-210°C～260°C shrinkage【200°C/15min】:＜3％ length per kg(m):9000~4500