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发明名称
PLUG FOR ROLLING HIGH ALLOY SEAMLESS STEEL TUBE EXCELLENT IN SEIZURE RESISTANCE AND PLUG PROTECTOR
摘要
申请公布号
JPH04266406(A)
申请公布日期
1992.09.22
申请号
JP19910024778
申请日期
1991.02.19
申请人
NIPPON STEEL CORP
发明人
SAKAMOTO TOSHIHARU;SOGO YASUO;MIZOGUCHI SHIGERU;TAKAGUCHI MITSURU
分类号
B21B25/00
主分类号
B21B25/00
代理机构
代理人
主权项
地址
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