Kufotokozera Mwachidule za PTFE ndi Kusinthasintha Kwake mu Ntchito Zamakono: Polytetrafluoroethylene (PTFE) ndi polima opangidwa omwe atchuka kwambiri m'mafakitale osiyanasiyana chifukwa cha kukana kwake kwapadera kwa mankhwala komanso kusagwirizana ndi ...