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Title:
冷間加工性及び結晶粒度特性に優れたボロン添加肌焼鋼鋼管の製造方法
Document Type and Number:
Japanese Patent JP4145764
Kind Code:
B2
Inventors:
Hiroyuki Nishimori
Application Number:
JP2003342487A
Publication Date:
September 03, 2008
Filing Date:
September 30, 2003
Export Citation:
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Assignee:
Sanyo Special Steel Co., Ltd.
International Classes:
B21B19/04; C21D8/10; C22C38/00; C22C38/32; C22C38/54
Domestic Patent References:
JP2003342689A
JP2001152315A
JP551699A
JP364415A
JP3162524A
Attorney, Agent or Firm:
Kenji Yokoi