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  • ISO9001(2015）English version

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  • High-tech products-touch LED digital display

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  • Computer Software Copyright Registration Certificate - Youyang LED Drive Control System V1.0

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  • Computer software copyright registration certificate - Youyang LED display control system V1.0

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  • Patent certificate (invention) - touch LED display device and display equipment

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  • Patent certificate - LED digital display controlled by drive

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