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  • A METAL COORDINATOR, RESPONDS TO INDIVIDUAL CUSTOMER SPECIFICATION NEEDS.
  • Ultra Tube Special site
  • about us
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  • Japanese
  • A METAL COORDINATOR, RESPONDS TO INDIVIDUAL CUSTOMER SPECIFICATION NEEDS.
TOSEI KOKAN OFFICIAL SITETOSEI KOKAN OFFICIAL SITE
  • why our Seamless pipe?
  • Pipe list
    • Seamless pipe
    • Welding pipe
  • Pipes/Tubes
  • Processing
  • Spec comparison chart
  • Iron powder
    • Iron powder
    • Iron-coated seeds
  • NEWS

Seamless pipe list

see the list

Welding Pipe list

see the list
  • why our Seamless pipe?
  • Pipe list
  • Pipes/Tubes
  • Processing
  • Spec comparison chart
  • Iron powder
  • NEWS
Copyright 2023 © TOSEI KOKAN CO.,LTD
  • why our Seamless pipe?
  • Pipe list
    • Seamless pipe
    • Welding pipe
  • Pipes/Tubes
  • Processing
  • Spec comparison chart
  • Iron powder
    • Iron powder
    • Iron-coated seeds
  • NEWS
  • Ultra Tube Special site
  • about us
  • contact us
  • Japanese