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经营范围
发明名称
Recycling Sand Using Waste Foundry Sand
摘要
申请公布号
KR100848821(B1)
申请公布日期
2008.07.28
申请号
KR20070030895
申请日期
2007.03.29
申请人
发明人
分类号
C04B14/06;C04B18/00
主分类号
C04B14/06
代理机构
代理人
主权项
地址
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