Quartz mchenga ndi yofunika mafakitale mchere zopangira, sanali mankhwala owopsa katundu, amene chimagwiritsidwa ntchito mu galasi, kuponyera, zoumba ndi zipangizo refractory, smelting ferrosilicon, flux metallurgical, zitsulo, zomangamanga, makampani mankhwala, mapulasitiki, mphira, abrasives ndi zina. ine...
Werengani zambiri