Title:
鋼管の製造方法
Document Type and Number:
Japanese Patent JP6551224
Kind Code:
B2
More Like This:
Inventors:
Takahiro Inoue
Application Number:
JP2015255431A
Publication Date:
July 31, 2019
Filing Date:
December 25, 2015
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B21D41/02; B21D37/16; B21D41/04; C21D8/10; C21D9/08; C22C38/00; C22C38/32
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Foreign References:
| US4192167 | ||||
| WO2014045552A1 |
Attorney, Agent or Firm:
Ascend Patent Business Corporation