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- PUR book binding hot glue.
- What is the PUR PUR is a macromolecular compound with ammonia es...
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- Overprinting, overprinting, trapping and stamping.
- Overprint: when multi-color printing is required, it is required to overlap the se...
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- Original four color separation principle.
- When making the plate, the original manuscript should be divided into green (C), ma...
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- What is printing color?
- What is printing color? A: the printing color is the color of ...
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