Teflon heat Shrink tube, PTFE tube, PTFE heat shrinkable tube, PTFE pipe, F4 tube, F4 pipe Teflon heat shrink tube , ... heat Shrink tube, PTFE tube, PTFE heat shrinkable tube, PTFE pipe, F4 tube, F4 pipe PTFE shrinkable tubing is made from PTFE resin and prepared by ... paste extruding and blowing technique. The tubing can be shrank ...