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lab sapphire gemstone
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Product Introduction This series of calcination annealing furnaces is widely used for annealing sapphire crystal rods and wafers, sintering special ...
2025-05-13 05:30:23
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Product Introduction This series of calcination annealing furnaces is widely used for annealing sapphire crystal rods and wafers, sintering special ...
2025-05-13 05:30:00
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