... ~0.5mm 3.length 10000m 4.wooden cast package PTFE film Polytetrafluoroethylene [PTFE, F4] is one of the best corrosion ... -term, and it solved many problem of chemical industry, petroleum, pharmaceutical and other area. PTFE seals, washers, gaskets, PTFE seals, ... bar can be made by turning drawing orientation film. PTFE FILMTypes and specifications:Skived film : Thickness 0.05~0.5mm L>10000mmMain ...