[Mafotokozedwe ambiri] Xanthate ndi flotation sulfide mineral, monga galena, sphalerite, actinide, pyrite, mercury, malachite, siliva wachilengedwe ndi golide wachilengedwe, Ndiwomwe amagwiritsidwa ntchito kwambiri.Pakuyandama ndi kupindula, kuti tisiyanitse bwino mchere wofunikira f ...
Werengani zambiri