موقعك الحالي:صفحة رئيسية>المنتجات
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Read More2017year5month8day Uncontrolled and mostly illegal extraction of sand and rocks from riverbeds for construction is killing rivers across South Asia and China. Mining in
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Read More2018year4month13day A sand dredging operation in Stung Hav District in Cambodia's Preah Sihanouk province, February 8, 2017.
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Read Moreالصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.