Metas fumbi wotolera thumba mu chikhalidwe flue mpweya kutentha, thumba mtundu wotolera fumbi fumbi fyuluta thumba kutentha zofunika m'munsimu 150 ℃, ndi mu kutentha mpweya kutentha ndi apamwamba nthawi.Chifukwa fumbi ili lokhala ndi utsi ndi fumbi la mpweya silili loyenera kusonkhanitsa fumbi lamagetsi lamagetsi chifukwa cha malire enieni okana, likhoza kusonkhanitsidwa ndi matumba a nsalu kapena njira zina;Ngati kuli kofunikira kuchepetsa kutentha komwe kuli fumbi mpaka pansi pa 150 ℃, ndalamazo zimakhala zapamwamba kapena zotsatiridwa ndi malowa;Chifukwa mpweya wa fumbi lili ndi zigawo za sulfure, mpweya wa fumbi uli ndi asidi "mame", ukhoza kukhala pamwamba pa mame a asidi, ndiko kuti, kutentha kumakhala kwakukulu mu kusefera ndi kulekana ndi zinthu zina, kotero muyenera kukhala ndi mtundu. kukana kutentha kwambiri kwa mankhwala CHIKWANGWANI chomwe chimagwiritsidwa ntchito popanga zinthu zosefera, thumba la ma metas lofunika kumva ndi loyenera kuchita izi.