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发明名称
Spiral-pipe of Production-equipment
摘要
申请公布号
KR100917474(B1)
申请公布日期
2009.09.14
申请号
KR20080000893
申请日期
2008.01.03
申请人
发明人
分类号
B21C37/12;B21C37/00;B21D5/12;B21D11/06
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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