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metal casting south africa chromite sand wholesale

chromitesandspecification is as follows:Origin:south africaItem Index Cr2O3 ≥46.0% SiO2 ≤1.0% FeO ≤26.5% CaO ≤0.30% MgO ≤10.0% Al2O3 ≤15.5% P ≤0.003% S ≤0.003% Cr/Fe 1.55:1 Bulk Density 2.5-3 Color Black PH 7-9 The amount of the ac

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Zhengzhou Haixu abrasives Co.,Ltd

White fused alumina / brown fused alumina/black silicon carbide/green silicon carbide/grass beads

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