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Home › Polycrystalline silicon ingot casting mold and method for producing same, and silicon nitride powder for mold release material for polycrystalline silicon ingot casting mold and slurry containing same

Polycrystalline silicon ingot casting mold and method for producing same, and silicon nitride powder for mold release material for polycrystalline silicon ingot casting mold and slurry containing same

US Patent 9022343 · Granted May 5, 2015

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