Nta: muaj zog corrosion kuj: zoo tshaj plaws rau cov khoom siv los tiv thaiv -corrosion. Ib qho yooj yim ua, txiav, vuam thiab dabtsi yog khoov yog txhua yam yooj yim heev. Siab zog, siab tawv thiab siab hardness; zoo hluav taws xob rwb thaiv tsev; zoo tshuaj stability; tus kheej -extinguishing; kev nqus dej tsawg; yooj yim rau khi thiab pleev xim.
