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发明名称
摘要
申请公布号
JPH0323798(U)
申请公布日期
1991.03.12
申请号
JP19890081806U
申请日期
1989.07.12
申请人
发明人
分类号
C21D1/00;F27D1/18;(IPC1-7):F27D1/18
主分类号
C21D1/00
代理机构
代理人
主权项
地址
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