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Nkhani

  • Kodi ndondomeko ya mankhwala ndi yotani?

    ndondomeko ya ntchito → kupukuta → kuchapa madzi → pickling → kuchapa → kuchapa madzi → kumiza pothandizira kusungunula zosungunulira → kuyanika ndi kutentha → kutentha kuviika galvanizing → kutsirizitsa → kuziziritsa → passivation → rinsing → kuyanika → kuyang'ana (1) Kuwotcha zitsulo zosungunulira kapena madzi kuchepetsa mafuta ...
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