A manufacturing method of seamless steel tubes

Title:

A manufacturing method of seamless steel tubes

Document Type and Number:

Japanese Patent JP6237540

Kind Code:

B2

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Inventors:

Matsumoto Masashi
Ryosuke Tate
Masanari Kanayama

Application Number:

JP2014173379A

Publication Date:

November 29, 2017

Filing Date:

August 28, 2014

Export Citation:

Assignee:

jfe Steel Corporation

International Classes:

B21B25/00; B21B19/04; B21B23/00; C23C14/06

Domestic Patent References:

Foreign References:

US4034588

Attorney, Agent or Firm:

Kenichiro Ochiai

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