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发明名称
Method of Improving Physical Properties of Electric Resistance Welded Steel Pipe
摘要
申请公布号
GB1192324(A)
申请公布日期
1970.05.20
申请号
GB19680019601
申请日期
1968.04.25
申请人
AMERICAN CAST IRON PIPE COMPANY
发明人
分类号
C21D9/50
主分类号
C21D9/50
代理机构
代理人
主权项
地址
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