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| 　 Name:Electronic stickers |
| Colorful double-side printing,changeable bar code ink-jet printing,seamless black block linking,anti-counterfeiting burelage |
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| Colorful double-side printing |
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| All kinds of certificates and carbon-covered ,sensitization and desensitization ink printing secret envelopes |
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| 　 Name:Secret envelopes |
| All kinds of certificates and carbon-covered ,sensitization and desensitization ink printing secret envelopes |
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