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Beijing YouHen silicon and germanium semiconductor material Co., Ltd
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Beijing YouHen silicon and germanium semiconductor material Co., Ltd
China

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  • silicon, germanium and semiconductor materials

    silicon, germanium....

    3 N, 4N, 5N, 6N metal silicon, polycrystalline silicon solar energy ( 99.9999% ) , single crystals silicon and a variety of different size metal silica fume; supply 5 N high-purity....


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