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Aluminum oxide(Al₂O₃)
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Aluminum titanium oxide (AT13)(Al₂O₃-TiO₂)
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Aluminum titanium oxide (AT40) (Al₂O₃-TiO₂)
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Aluminum titanium oxide (AT3)(Al₂O₃-TiO₂)
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Aluminum titanium oxide (AT20)(Al₂O₃-TiO₂)
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Aluminum titanium oxide (AT50) (Al₂O₃-TiO₂)
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Silicon oxide aluminum oxide(SiO₂-Al₂O₃)
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Magnesium oxide aluminum oxide(MgO-Al₂O₃)