Jecha reQuartz yakakosha muindasitiri yemamineral raw material, isiri-makemikari zvinhu zvine njodzi, iyo inoshandiswa zvakanyanya mugirazi, kukanda, ceramics & refractory zvinhu, kunyungudutsa ferrosilicon, metallurgical flux, metallurgy, kuvaka, indasitiri yemakemikari, mapurasitiki, rabha, mabrasives nezvimwe. ini...
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