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Since its foundation in 1978, Sung Il has been producing high-frequency bending, piping, ship engine parts, and automobile engine parts based on the technological knowledge and experience accumulated over 32 years for national basic industries in various ways. The high frequency bending machine developed through domestic production for the first time in the country in 1981 is exported to India and Egypt, and based on its record of participating in and supplying to the project in China (sending natural gas from west to east), it is preparing for the construction of a piping network of Irkutsk gas field to supply gas to China and Korea and the construction of Angarsk oil pipeline in Siberia, as well as Russia in the future. Sung Il has the advanced technology to produce gas turbine parts and is producing/supplying high-quality products such as high-frequency bend, pipe spool production, oil pressure and high-pressure fuel injection pipe, LNG valve unit, and manifold, and is extending its business area to factory automation and business rationalization.

Product Description 

Bending area-capacity and application scope

  • Materials: Carbon Steel, Alloy Steel, Stainless Steel, Duplex Stainless Steel, Nickel Superalloy
  • Size: 1/8 inch to 60 inch
  • Wall Thickness: 1mm to 110mm/Min.
  • Bending Radius: 1.5DR/Bending Angle: 0°~270°


Gas turbine combustion chamber hot parts area-production and renewal maintenance capacity


  • GT11N(M) Hot Casing (Coated)
  • GT11N(M) Inner Liner (Coated)
  • GT11N(M) Support Cylinder
  • GT11N(M) Shielding Cone (Coated)
  • GT11N(M) Inner Liner Collar



  • ADDRESS :  1587-4, Songjeong-dong, Gangseo-gu, Busan, KOREA
  • TELEPHONE : +82-51-831-8800
  • FACSIMILE: +82-51-831-5959
  • E-MAIL :
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