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现行 ISO 1722:1974
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Rock drilling — Extension drill-steel equipment for percussive long-hole drilling — Reverse-buttress-threaded equipments 1 1/2 to 2 1/2 in (38 to 64 mm) 凿岩与粉煤灰;冲击式深孔钻用延伸钻钢设备——反向支墩螺纹设备1 1/2至2 1/2英寸(38至64毫米)
发布日期: 1974-09-01
指定设备的基本尺寸。给出组件列表;表格和图表:条状钻孔钢的尺寸;延长杆的长度;耦合套管;钻头直径(四翼钻头);反支墩螺纹;用于延长杆的空心六角杆。
Specifies the basic dimensions for equipment. Gives a list of components; tabulates together with figures: size of drill-steel in bar form; lengths of extension rods; coupling sleeves; bit diameters (four-wing bits); reverse-buttress threads; hollow hexagonal bars for extension rods.
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归口单位: ISO/TC 82
相似标准/计划/法规
现行
UNE 22662-1986 ERRATUM
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现行
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现行
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现行
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现行
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