Usetyenziso oluqhelekileyo lwezifudumezi zombane ezingagqabhukiyo zingaqhushumbayo zezi: 1. Izinto zekhemikhali kushishino lweekhemikhali zifudunyezwa ngokufudumeza, ezinye ii powders zomiswa phantsi koxinzelelo oluthile, iinkqubo zekhemikhali kunye nokomiswa kokutshiza.2. Ukufudumeza kweHydrocarbon, kubandakanywa neoyile ekrwada yepetroleum, ioyile enzima, ifutha...
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