Insimbi engagqwali yitemu elijwayelekile lomndeni wezinsimbi zengxubevange ezingagqwali eziqukethe u-10.5% noma ngaphezulu kwe-chromium.
Zonke izinsimbi ezingenasici zinokumelana okuphezulu nokugqwala. Lokhu kumelana nokuhlaselwa kungenxa yefilimu ye-oxide ecebile nge-chromium eyakhiwe phezu kwensimbi. Nakuba izace ngokwedlulele, le filimu engabonakali, engenzi lutho inamathela ngokuqinile ensimbi futhi ivikela ngokwedlulele ezinhlobonhlobo zemithombo yezindaba ezonakalisayo. Ifilimu iyazilungisa ngokushesha lapho kukhona umoya-mpilo, futhi umonakalo ngokuhuzuka, ukusika noma umshini ulungiswa ngokushesha.
Isikhathi sokuthumela: Aug-01-2022