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发明名称
PRODUCTION OF LARGEEDIAMETER THICKKWALLED BENT PIPE
摘要
申请公布号
JPS5510329(A)
申请公布日期
1980.01.24
申请号
JP19780082994
申请日期
1978.07.10
申请人
DAIICHI KOSHUHA KOGYO KK
发明人
SAKAIYAMA KOUZOU
分类号
B21D7/00
主分类号
B21D7/00
代理机构
代理人
主权项
地址
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