workshop on technical and economic co-operation for the latin american mining and metallurgical sector يبدو
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- workshop on technical and economic co-operation for the latin american mining and metallurgical sector معنى: حلقة العمل المعنية بالتعاون التقني والاقتصادي في قطاع التعدين والمعادن في أمريكا اللاتينية