Isihlabathi se-quartz siwumthombo obalulekile wezimboni zamaminerali, izimpahla eziyingozi ezingezona amakhemikhali, ezisetshenziswa kakhulu engilazini, ekubunjweni, ku-ceramics & refractory materials, ukuncibilikisa i-ferrosilicon, i-metallurgical flux, i-metallurgy, ukwakhiwa, imboni yamakhemikhali, amapulasitiki, irabha, ama-abrasives nokunye. ngi...
Funda kabanzi