... Volume:30ml,50ml,100ml,250ml,500ml,1000ml 100ml Polytetrafluoroethylene Beaker I. PTFE DescriptionIn fluoroplastics, PTFE got the ... insulation7. Atmospheric aging resistance, Good gas barrier property8. Low permeability , Good gas barrier property9. Good physiological compatibility ... material which is resistant to both high and low temperature, corrosion-resistant materials, insulation materials in ...