"حدث البجعة السوداء" في غينيا يؤدي إلى ارتفاع أسعار الألومينا
Since October, alumina prices have continued to rise, and China’s largest bauxite importer – a large bauxite company in Guinea export shipment is blocked very closely. Bauxite production cuts, downstream electrolytic aluminum demand is stable, … إقرأ المزيد