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Tepi yosindikizira ulusi (yomwe imadziwikanso kuti PTFE tepi kapena plumber's tepi) ndi filimu ya polytetrafluoroethylene (PTFE) yogwiritsidwa ntchito posindikiza ulusi wa mapaipi.Tepiyo imagulitsidwa yodulidwa kuti ikhale m'lifupi mwake ndikumangirira pa spool, zomwe zimapangitsa kuti zikhale zosavuta kupota ulusi wa chitoliro.Amadziwikanso ndi dzina lopangidwa ndi genericized Tef ...Werengani zambiri»