4. Alloys or metallic compositions
  5. Radioactive
  6. Iron base

Poongsan Corporation

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Bimetallic coin and method for producing the same

Card – picture – or sign exhibiting – Check – label – or tag – Coin or token type
Patent

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Copper alloys for electrical and electronic parts

Alloys or metallic compositions – Radioactive – Iron base
Patent

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Copper alloys for electrical and electronic parts and its manufa

Alloys or metallic compositions – Copper base – Zinc containing
Patent

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Device and method for cold forging double cylindrical pulley

Metal deforming – By use of closed-die and coacting work-forcer – Forcing work into or within closed die; e.g. – forging
Patent

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Heat transfer tube with cross-grooved inner surface and manufact

Heat exchange – With coated – roughened or polished surface
Patent

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Profile ID: LFUS-PAI-P-144576

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