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发明名称
电动式换向球阀
摘要
申请公布号
CN300883579D
申请公布日期
2009.02.11
申请号
CN200730295986.0
申请日期
2007.12.28
申请人
张明亮
发明人
张明亮;王学成;王 磊
分类号
23-01
主分类号
23-01
代理机构
代理人
主权项
地址
266111山东省青岛市城阳区青大工业园青岛三利集团有限公司
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