複合二次加工性に優れた高張力鋼管の製造方法

Title:

複合二次加工性に優れた高張力鋼管の製造方法

Document Type and Number:

Japanese Patent JP4140419

Kind Code:

B2

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Inventors:

Kitazawa Makoto
Takaaki Toyooka
Yoshikazu Kawabata

Application Number:

JP2003089577A

Publication Date:

August 27, 2008

Filing Date:

March 28, 2003

Export Citation:

Assignee:

jfe Steel Corporation

International Classes:

B21B17/14; C21D8/10; C22C38/00; C22C38/06; C22C38/58

Domestic Patent References:

Attorney, Agent or Firm:

Eiichi Kobayashi

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