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Edge removing device and edge removing method for silicon wafer back sealing layer
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Baffle device and guide cylinder, radiation shielding device and crystal pulling device with same
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Cooling device and cooling system
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Single crystal furnace and preparation method of single crystal silicon rod
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Single crystal furnace and monocrystalline silicon preparation method
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Wafer cleaning device and wafer cleaning method
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Wafer processing method and apparatus
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Horizontal centering calibration fixture, crystal pulling furnace and horizontal centering calibration method
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Guide cylinder for crystal pulling furnace and crystal pulling furnace
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Cleaning device
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Monitoring device and silicon wafer processing device
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Crystal bar protection assembly, crystal bar transfer device and crystal bar transfer method
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Crystal bar transfer descending protection assembly, crystal bar taking-out device and crystal bar taking-out method
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Chemical passivation plastic packaging system
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Grinding disc parallelism adjusting device and method
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Mortar tank, cutting device and crystal bar cutting method
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Tail gas treatment device
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Crystal pulling furnace and preparation method of single crystal silicon rod
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Silicon wafer passivation device and method
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Check valve of vacuum pump
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