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发明名称
摘要
申请公布号
JPS6216553(Y2)
申请公布日期
1987.04.25
申请号
JP19800161980U
申请日期
1980.11.14
申请人
发明人
分类号
F16L55/12;F16L55/10;(IPC1-7):F16L55/12
主分类号
F16L55/12
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