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发明名称
摘要
申请公布号
JPH0642988(B2)
申请公布日期
1994.06.08
申请号
JP19860311242
申请日期
1986.12.27
申请人
SHOWA ALUMINIUM CO LTD
发明人
MIURA HIDEAKI;WATANABE SHOICHI;WAKABAYASHI NOBUHIRO;OGASAWARA NOBORU
分类号
B21D53/06;B23K1/00;F28D1/047;F28F1/12;(IPC1-7):B23K1/00
主分类号
B21D53/06
代理机构
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