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bengalruth95
@bengalruth95
https://ebookmarks.co/
In book binding, concave-convex embossing is mainly used to print letter sleeves, cowl textual content and patterns or wireframes to enhance the three-dimensional impact of the printed matter. With the change of the sunshine receiving angle, the image textual content is looming, filled with dynamic and three-dimensional, lifelike, and has an anti-counterfeiting effect. According to the precept of light diffusion, it reflects the changes of mild from multiple angles, and m