... film , PFA welding rod. (2) FEP/F46 transparent tube, FEP insulation tube, FEP heat shrink tube, FEP coil tube, FEP corrugated / bellows tube, FEP film, FEP ... of extractable agents, physiologically safe and biocompatible.FEP/F46 tubeUsageliquid crystal equipmentsingle-core cable with one-side ... temperature ,fluorin and alkali will reaction with FEP, no reaction with other organic acidlow water ...