Daga hangen nesa, babban Nickel abun ciki na rashin iya tsayayya da lalata da yawa na kwayoyin da ke haifar da damuwa a cikin crosros crosging crosros crosros; Chromium fakewarss juriya ga mahadi na sulfur, kuma a cikin samar da yanayin rigakafi a cikin tsananin zafin jiki ko mafita mai lalacewa.