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发明名称
BALL CHAIN DIE MANUFACTURE METHOD
摘要
申请公布号
KR100572993(B1)
申请公布日期
2006.04.24
申请号
KR20030062562
申请日期
2003.09.08
申请人
发明人
分类号
B21D37/20
主分类号
B21D37/20
代理机构
代理人
主权项
地址
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