Umvelisi ophezulu

Iminyaka engama-30 yokuvelisa amava

Iindaba

  • Zithini izicelo zentsimbi ezingenazibala?

    Intsimbi engenasibala iesile yintsimbi engenasibala apho isigaba se-Ferrire kunye ne-austerite kwisicwangciso sesisombululo esomeleleyo kwi-50%. Ayinabunzima kuphela, amandla aphezulu kunye nokuxhathisa kakhulu kwi-chloride yosulelo, kodwa kwakhona ukuxhathisa ukubeka i-corrosion kunye nokunxibelelanisa interrosion kunye neyothungelelo ...
    Funda ngokugqithisileyo