... repression, and other technology is made resistant to high temperature, corrosion resistance,aging,self-lubricating, compressibility,elasticity,and ... oneStandard twoDensity Tolerance (g/cm3)±0.03±0.05Thickness tolerance (g/cm3)±0.03±0.04Carbon content (%)≥99≥97Tensile strength ... 15Sulfur content (ppm)40-900<1500Fluoride content (ppm)<25<30Stress relaxation (%)1010TG<0.5<0.1 Supply 0.1-5mm Graphite ...