Polytetrafluoroethylene raw material tape (ptfe sealing tape) is the residual deformation produced by the resin under the action of compression force. It is first made into a bar or strip by the push molding method, and then placed in a roller press It is rolled up, and under the pressure of the roller, it is stretched into a thin strip with a certain thickness and width. Finally, the extrusion aid is removed to obtain a raw material strip.
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