rw
Umuringa wumuringa nigice gikomeye mubikorwa bitandukanye, cyane cyane mubice byo gupakira no gucapa. Ikozwe muguhuza umuringa nibindi byuma nka zinc, tin, cyangwa nikel, byongera imiterere yubukanishi no kurwanya ruswa. Ibintu bidasanzwe biranga insinga yumuringa ituma ihitamo ryiza ryimikoreshereze itandukanye, kuva ku myitwarire y'amashanyarazi kugeza aesth