Silica Collamns ndi otayika komanso osagwiritsidwa ntchito kamodzi, koma osamalira bwino, ma carrididi a silika amatha kugwiritsidwanso ntchito popanda kuperekera zinthu.
Pofuna kugwiritsidwanso ntchito, singano mbali yokhayo yomwe imayenera kuwuma ndi mpweya kapena kusunthidwa ndi kusungidwa ndi isoppanol.
Post Nthawi: Jul-13-2022