주메뉴

• About the Company
  • Company Overview
  • CEO Greeting
  • Vision
  • History
  • Organization Chart
  • How to Come
• Business Area
  • Business Area
  • List of Raw Materials
    • Special steel (steel bar)
    • Section Steel
    • Reinforcement Steel
    • Plates
    • Steel Tube
    • Others
  • Product List
  • Facilities on Hand
• Quality Management
  • Quality Research Center
  • Main Certificates
• Cyber Promotion
  • About CI
  • Digital Brochure
  • Photo Gallery
• Customer Service
  • Announcement
  • E-SALE
  • Quality Warranty Inquiry
• Customer
  • Sales

  • Procurement

• ISO 9001:2008 certification

  

• Quality system certification

  

• Management Innovation
  (MAIN-BIZ) certification

  

• SC rating certification of Doosan Heavy Industries and Nuclear