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High temperature calcined brown corundum is formed by high temperature and medium temperature calcined abrasive in the production process of raw brown corundum, and then annealed.
High temperature calcined brown corundum is formed by high temperature and medium temperature calcined abrasive in the production process of raw brown corundum, and then annealed.
High temperature calcined brown corundum is formed by high temperature and medium temperature calcined abrasive in the production process of raw brown corundum, and then annealed.
High temperature calcined brown corundum is formed by high temperature and medium temperature calcined abrasive in the production process of raw brown corundum, and then annealed.
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