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摘要
申请公布号
JPS5831028(Y2)
申请公布日期
1983.07.08
申请号
JP19780048763U
申请日期
1978.04.12
申请人
发明人
分类号
F16L21/08;(IPC1-7):F16L21/08
主分类号
F16L21/08
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