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    The surface properties of paper printing technology in a very important indicator, which includes brightness, smoothness, gloss.

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    The blurring of security watermark is one of the important indicators in the quality inspection system of security printing.

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  • 防伪印刷纸张质量检测系统中,纸张防伪水印模糊其检测重要指标之一

    The blurring of security watermark is one of the important indicators in the quality inspection system of security printing.

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