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发明名称
STRAIGHTENING METHOD FOR TUBE BY ROTARY STRAIGHTNER
摘要
申请公布号
JPH02207921(A)
申请公布日期
1990.08.17
申请号
JP19890028501
申请日期
1989.02.07
申请人
SUMITOMO METAL IND LTD
发明人
YASUDA TAKEO
分类号
B21D3/04
主分类号
B21D3/04
代理机构
代理人
主权项
地址
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