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Laser quartz glass rod
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Black absorbing quartz glass
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fiber preform
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High transparency quartz plate
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High transmission laser quartz rod
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Yellow quartz tube
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Large-diameter fused quartz rod for laser
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Optical fiber preform
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Fused thick-walled tube
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Blue quartz tube
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Grey quartz tube
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Black quartz tube
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Ruby quartz tube
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High ozone quartz tube
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Ozone free quartz tube