Ukumelana nokubola kwezinto ezivamile ze-valve_ I-Teflon
I-Polytetrafluoroethylene (i-Teflon noma i-PTFE), evame ukwaziwa ngokuthi "inkosi yepulasitiki", iyinhlanganisela ye-polymer eyenziwe nge-polytetrafluoroethylene nge-polymerization Ngaphandle kwensimbi encibilikisiwe ye-alkali, i-PTFE ayigqwali neze yinoma iyiphi i-reagent yamakhemikhali. Isibonelo, uma ibilisiwe ...
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