Kromium Dalam Industri Metalurgi

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Kelimpahan, pembuatan, kegunaan unsur transisi, dampak negatif, bahaya, kimia - kamu telah mempelajari sifat-sifat unsur transisi, sekarang tahukah kamu kelimpahan dari unsur-unsur transisi periode ke 4 tersebut di alam inimari kita pelajari kelimpahan.

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Maintenance free of charge within 12 months from shipment