Western Sahara has abundant of stones or mining. And the aggregates for construction in Africa always have a very good price. The granite is a kind of stone comprised with feldspar, quartz, black and white mica. The quartz engages about 10%-50%, and the feldspar engages about 2/3. So the granite is hard, with high intensity, anti-corrosion, Wear Resistance, Low water imbibition,... Devamını Oku