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发明名称
INTERNALLY PROTECTED STEEL TUBE AND JOINT THEREFOR
摘要
申请公布号
JPH0473486(A)
申请公布日期
1992.03.09
申请号
JP19900184239
申请日期
1990.07.13
申请人
KOUKAN KENZAI KK;ASAHI BOUSHIYOKU KANZAI KK
发明人
KONISHI KAZUO;MATSUMIYA ISAMU
分类号
F16L15/04;F16L58/18
主分类号
F16L15/04
代理机构
代理人
主权项
地址
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