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发明名称
摘要
申请公布号
JPS5820349(B2)
申请公布日期
1983.04.22
申请号
JP19790046199
申请日期
1979.04.16
申请人
SEIBU POLYMER KASEI KK
发明人
YOSHIDA KUNIO
分类号
F16L27/10;E03F3/04;E21D11/04;E21D11/38
主分类号
F16L27/10
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