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Tef ɗin hatimi (kuma aka sani da tef ɗin PTFE ko tef ɗin plumber) fim ne na polytetrafluoroethylene (PTFE) don amfani da zaren bututu.Ana sayar da tef ɗin a yanke zuwa takamaiman nisa kuma a raunata a kan spool, yana sauƙaƙa iska a kusa da zaren bututu.An kuma san shi da sunan kasuwanci mai suna Tef...Kara karantawa»