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1. 货品： 河砂 Product : River sand
2. 产地：马来西亚 Original : Malaysia
3. 细度模数： 2.3-3.0 Fineness Modulus: 2.3-3.0
4. 氯化物：≤0.02% Chloride Content: ≤0.02%
5. 水分含量：
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