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Corporate Information

Lines of Business

OCTG Field

Manufacture of couplings for OCTG and oil & gas well-related accessories


  • High gas-tight couplings for high Cr stainless steel tubes/steel tubes for sour environments
  • PUP joints, screen pipes, etc.

Civil/Construction Field

Processing of steel pipes for civil engineering and construction use (various types of processing, including cutting, groove preparation, threading, drilling, slitting, etc.)


  • Manufacture of joints for steel pipes for civil engineering and construction
  • Earthquake-proof and damping braces for retrofittable use in existing buildings and for built-in use in newly-constructed buildings
  • AGF steel pipes for tunnel ground reinforcement
    (*AGF; All Ground Fasten method)
  • Anchor steel pipes for snow avalanche prevention fences, etc.

Geothermal/Hot Spring Field

Manufacture of steel tubes and accessories used in hot spring wells and geothermal wells


  • Thermal tubes with excellent heat-retaining property (heat-insulated double-walled tubes)
  • TE-FJTM steel pipe; pipe with specially-designed threaded joint for hot spring and seismic observation well (*TE-FJ: Tubic Efficient-Flush Joint)
  • Strainer steel tubes, X-overs, etc.

Other businesses

  • Manufacture of resin protectors
  • Manufacture of steel sockets