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Patent certificate
  • Patent certificate of invention (a foamed polystyrene curtain sheet and its preparation method)
  • Invention patent certificate (a strong dispersion, impact resistant ABS masterbatch and its preparation method)
  • Invention patent certificate (a color crystal and its method for coloring plastics)
  • Certificate of invention patent (a kind of heat balance blowing agent)
  • Invention patent certificate (a kind of ABS color masterbatch)
  • Invention patent certificate (a color masterbatch for hard PVC and its preparation method)
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Mailbox: bosi@vip.163.com
Address: No. 7, Yun Qing Road, Luogang District, Guangzhou, Guangdong

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