Saj zawg zog graphite.Saj zawg zog graphite yog ib qho tshiab sealing khoom nrog zoo resilience, softness thiab kub tsis kam, uas tau nrov nrov thiab siv nyob rau hauv cov lag luam tshuaj.
Polytetrafluoroethylene (PTFE).Polytetrafluoroethylene tshuaj tiv thaiv, kub tsis kam, txias tsis kam, roj kuj yog superior rau yas, nws tsis yooj yim rau laus, tsis muaj combustion, dej nqus yuav luag xoom.Nws cov koom haum tuab, tsis muaj-polar molecular qauv, siv los ua gasket, lub rooj sib chwv tau yuav du, tsis lo rau cov flange hlau.Ntxiv rau qhov raug corroded los ntawm molten alkali hlau thiab fluorine uas muaj cov pa roj, nws muaj peev xwm tiv taus corrosion ntawm ntau yam kua qaub, alkali, ntsev thiab roj tov tawm.
