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Obtained the ISO 9001 Quality Management System Certification

  1. Fullness meets the cross-linking index: WPV-HP2 level value standard.
  2. Hardness meets the hargness-1.8H standard.
  3. Adhesion meets the national GB9286-88 test standard, with internal level 7 and external level 1 exceeding 90%, compared to the national standard of 60%.