1. Kukonza utoto: fakitale ya hardware imagwiritsa ntchito kupenta popanga zinthu zazikulu za hardware, ndipo zitsulo zimatetezedwa kuti zisachite dzimbiri pogwiritsa ntchito utoto, monga zofunikira za tsiku ndi tsiku, zotchinga zamagetsi, ntchito zamanja, ndi zina zotero. 2. Electroplating: Electroplating ndi imodzi mwa the...
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