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ترکیب شیمیایی اکسید آلومینیوم : نگاهی به کاربردهای آن در صنایع
denisdkfg153148
4 days ago
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بوکسیت، ماده ای رسوبی از آلومینا است. ترکیب شیمیایی آن اساساً ناخالصی فلزات را در برمی گیرد، اما غلظت این ترکیبات به
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