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发明名称
耐用煤钻杆
摘要
一种新耐用煤钻杆,包括连接体、联轴套、螺旋钻杆组成。螺旋杆用连接体与回转钻机联接,螺旋钻杆两端形状一样,当一头磨损后可调头重新使用,从而提高煤钻杆使用寿命近一倍,达到物尽其用的目的,适用于生产回转钻孔机具的厂家采用。
申请公布号
CN2238314Y
申请公布日期
1996.10.23
申请号
CN95201056.9
申请日期
1995.01.15
申请人
乔莺迁
发明人
乔莺迁
分类号
E21B17/22
主分类号
E21B17/22
代理机构
代理人
主权项
一种新的耐用煤钻杆,包括连接体、联轴套、螺旋钻杆,本实用新型的特征是连接体与钻机和螺旋钻杆联结,螺旋钻杆两头形状一样,都有槽口、内孔及销孔。
地址
031400山西省霍州市北环路北三巷6号
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