证券之星消息,根据天眼查APP数据显示石化油服(600871)新获得一项发明专利授权,专利名为“大尺寸套管段铣工具”,专利申请号为CN202111055363.1,授权日为2025年9月30日。专利摘要:本发明提出了一种大尺寸套管段铣工具,包括筒形的本体,所述本体的外壁上沿轴向设置若干矩形凹槽;设置在所述矩形凹槽内的刀具,所述刀具在推力的作用下沿径向从所述矩形凹槽内张开或缩回到所述矩形凹槽内;设置...
Source Link证券之星消息,根据天眼查APP数据显示石化油服(600871)新获得一项发明专利授权,专利名为“大尺寸套管段铣工具”,专利申请号为CN202111055363.1,授权日为2025年9月30日。专利摘要:本发明提出了一种大尺寸套管段铣工具,包括筒形的本体,所述本体的外壁上沿轴向设置若干矩形凹槽;设置在所述矩形凹槽内的刀具,所述刀具在推力的作用下沿径向从所述矩形凹槽内张开或缩回到所述矩形凹槽内;设置...
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