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Inventor
KOYAMA YASUE
JP
2 patents
Patents
2 patents
US6736910B2
May 18, 2004
High carbon steel pipe excellent in cold formability and high frequency hardenability and method for producing the same
JFE STEEL CORP
7 citations
71
US7942984B2
May 17, 2011
Steel pipe with good magnetic properties and method of producing the same
JFE STEEL CORP
0 citations
50