Certification

  • Patent
  • Certificate of selection
  • US Patent
  • Hinge assembly patent certificate
  • Lumber Support Patent Certificate
  • Active hinge device patent certificate
  • Sheet laser welding patent certificate
  • 2021 Main-Biz
  • Inno-Biz Confirmation
  • Main-Biz Confirmation
  • Global Professional Candidate Company
  • World Class 300 Company Selection Certificate
  • Trunk Lid Hinge New Technology Certificate