three color printing 三色印刷
This machine has all functions of ZK-3 chopstick packing machine. It features three-color printing, expanding the color optional scope for customers.
该机具备ZK-3筷子包装机的全部功能，并可以三色印刷，给用户增加了筷套颜色的选择范围。
Universal bag printing standard size three open, four open four-color or three. Each kind is divided into two kinds of positive degree or degree.
通用的手提袋印刷标准尺寸分三开，四开或对开三种。每种又分为正度或大度两种。
Printing effect research include three parts: printing gloss, color density and color deviation, color efficiency, gray level.
对印刷效果的研究包括三个方面：印刷光泽度、色密度和色偏、色效率、灰度。
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