Vuto wamba

  • Malo osambira a zinc kapena poto wa zinc omwe amagwiritsidwa ntchito popaka galvanizing nthawi zambiri amagwiritsa ntchito chitsulo chochepa chokhala ndi kaboni ochepa. Izi ndikuti muchepetse kulumikizana ndi dzimbiri lotentha mukamagwiritsa ntchito. Ngati zinthu za mphika wa zinc zimagwiritsidwa ntchito molakwika, zifupikitsa ntchito ya mphika ...

    2021-03-06

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