... 3.Volume:30ml,50ml,100ml,250ml,500ml,1000ml Engineering PTFE Beaker I. PTFE DescriptionIn fluoroplastics, PTFE ... gaskets & seals. And temperature resistance from -200°C to 260 °C. II. PTFE Characteristics: Advantages:1. Superior endurance ... insulation materials in the atomic energy, defense, aerospace, electronics, electrical, chemical industry, machinery, instruments, meters, construction, textile, ...