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Online degassing and refining device for aluminum melt
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A kind of immersion integrated heating device
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A kind of high-efficiency silicon nitride silicon degassing rotor arrangement
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A kind of protecting tube
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A kind of silicon nitride grading wheel
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A kind of stable high closed sealing tube assembly
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A kind of alkaline-resisting special cermacis and preparation method thereof
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A kind of heat transfer heater protecting pipe high
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One kind nitridation silicon strip cutter sweep
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A kind of silicon nitride degassing rotor
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A kind of thermocouple protection pipe fixing device
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A kind of heater protecting pipe
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A kind of stalk of duplex
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High-strength special ceramic and preparation method thereof
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Acid-resistant special ceramic and preparation method thereof
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Silicon nitride ceramic and preparation method thereof
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Gas removal device
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A kind of anticorrosive special cermacis and preparation method thereof
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A kind of silicon nitride ceramics gas blow pipe boring method
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