Kuwonetsa katundu:
Mkuwa woyera, ndi aloyi wopangidwa ndi mkuwa wokhala ndi faifi tambala monga chinthu chachikulu chowonjezera, ndi choyera chasiliva, chonyezimira chachitsulo, motero dzina la mkuwa woyera.Mkuwa ndi faifi akhoza kusungunuka kwa wina ndi mzake kwamuyaya, motero kupanga njira yokhazikika yokhazikika, ndiko kuti, mosasamala kanthu za chiwerengero cha wina ndi mzake, ndi aloyi nthawi zonse α -single-gawo.Nickel ikaphatikizidwa kukhala mkuwa wofiyira kuposa 16%, mtundu wake wa aloyi umakhala woyera ngati siliva, ndipo kuchuluka kwa nickel kumakhalanso koyera.Zomwe zili mu nickel mu mkuwa woyera nthawi zambiri zimakhala 25%.