Imiqolo yentsimbi engagqithisiyo yimveliso ezahlukahlukeneyo ezisetyenziswa kwizicelo ezahlukeneyo ngenxa yeepropathi zazo ezizodwa. Yenziwe ikakhulu ngentsimbi, i-chromium, kunye ne-nickel, ezi bar zenzelwe ukumelana nokubola kunye ne-oxidation, ukwenza zilungele zombini ukuseta ngaphakathi nangaphandle. Imilo yebha ethe tyaba, ebonakaliswa yicandelo elinqamlezayo elixande kunye nemiphezulu ethe tyaba, ivumela ukuphathwa ngokulula kunye nee-ins