Inkasta oo aynu wada ognahay caaryada mishiinka lebenka ee aan guban, dad badan ma yaqaaniin sida loo sameeyo caaryada noocaan ah. Aan idin baro. Marka hore, waxaa jira noocyo badan oo ah caaryada mashiinka lebenka, sida caaryada leben dalool, caaryada lebenka caadiga ah, caaryada leben midabka iyo caaryada kala duwan. Marka laga eego dhinaca maaddada, waxaa jira asal ahaan saddex nooc. Midka koowaad waa caaryada ka samaysan birta caadiga ah, taas oo u qaybsan caaryada sare iyo caaryada hoose, tan labaadna waxay ka samaysan tahay No. 15 birta manganese, sida daab miinshaar ah oo lagu gooyo marmar. Midda saddexaad waa caaryada kaarboonka zinc, oo u dhiganta lambarka 65 ee birta manganese. Mar kasta oo summada manganese-ku ay sarrayso, way sii adkaanaysaa awoodda xidhashada u adkaysata qaraabada, laakiin sidoo kale way fududahay in la jajabiyo. Tani waa sababta caaryada guud ahaan ay ugu fiican tahay marka manganese-ku yahay 65 oo kaliya. Si kasta oo calaamaddu u sarreeyso, waxay leedahay xoog, laakiin way fududahay in la jebiyo. Haddii calaamaddu hooseyso, ma laha xoog mana laha xirashada u adkaysata. Tani waa hordhac kooban oo ku saabsan caaryada.