1. Chromium chinangwa Chromium sechinhu chinoputika firimu haisi nyore chete kusanganisa ne substrate ine high adhesion, asiwo chromium uye oxide kuti ibudise CrO3 firimu, maitiro ayo emagetsi, acid resistance, kugadzikana kwekushisa kuri nani. Mukuwedzera, chromium mune isina kukwana oxidati ...
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