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Qingdao small and medium-sized enterprises specialized new product technical certificate
Update Time2019-10-07

product name: PE (PVC) single wall double wall corrugated pipe manufacture machine

company name: Qingdao Tongsan Plastic Machinery Co.,Ltd


Qingdao small and medium-sized enterprises specialized new product technical certificate
  • Period:
  • 2017-08-09 - 2020-08-08
  • Certification bodies:
  • Qingdao economic and information commission