Kufotokozera: Mwala wophulika womwe umadziwika kuti pumice kapena porous basalt, ndi mtundu wazinthu zogwirira ntchito komanso zachilengedwe.Lili ndi mchere wambiri ndi ma microelements, monga sodium, magnesium, aluminium, silicon, calcium, titaniyamu, manganese, chitsulo, faifi tambala, cobalt ndi molybdenum ndi zina zotero ...
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