Mkuwa wogwiritsidwa ntchito kwambiri ndi ma alloys ake ndi: mkuwa wangwiro, mkuwa, mkuwa, ndi zina zotero. Maonekedwe a mkuwa woyera ndi wofiira-chikasu.Mumlengalenga, pamwamba padzakhala filimu yofiirira-yofiira wandiweyani chifukwa cha okosijeni, choncho imatchedwanso mkuwa wofiira.The magetsi madutsidwe ndi matenthedwe madutsidwe wa koyera...
Werengani zambiri