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发明名称
PLUG DRAWING METHOD FOR METALLIC PIPE
摘要
申请公布号
JPH01170513(A)
申请公布日期
1989.07.05
申请号
JP19870326797
申请日期
1987.12.25
申请人
NIPPON STEEL CORP;NITTETSU TEKUNOSU KK
发明人
FUJII SUKEYA;SUGI KOJI;SASAKI TAKESHI
分类号
B21C9/00
主分类号
B21C9/00
代理机构
代理人
主权项
地址
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