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经营范围
发明名称
PRODUCTION OF MULTILAYER SPIRAL STEEL PIPE AND DEVICE THEREOF
摘要
申请公布号
JPS5573423(A)
申请公布日期
1980.06.03
申请号
JP19780145334
申请日期
1978.11.27
申请人
MITSUBISHI HEAVY IND LTD
发明人
IWASAKI YASUHIRO;SUDOU KATSUZOU;WADA KOUICHI;SHIODA HIROSHI;MORIYA MUNEO;IMAMURA JIYUSABUROU
分类号
B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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