M'gawo laulimi, mitengo ya feteleza imagwira ntchito yofunika kwambiri pozindikira ndalama zonse zopangira. Feteleza imodzi yotereyi, dziko la diatomaceous, latchuka chifukwa cha kuchuluka kwake kwa magnesium ndi sulfure, zomwe zimapangitsa kuti zikhale zothandiza kwambiri polima mbewu. Komabe, mwina ...
Werengani zambiri