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Terms for subject Drilling containing extra extra | all forms
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double extra heavy双重加厚的
double extra heavy特加重的
double extra heavy pipe特加重钻杆
double extra strong双重加厚的
extra gage protection超直径保护
extra gage protection特别保径结构
extra hand加力杆
extra hand加长杆
extra heavy加重的
extra heavy valves and fittings加重型阀门和管件
extra hole一种钻杆螺纹接头形式4扣/英寸
extra hole大贯眼
extra hole加大贯眼型钻杆接头
extra large hole特大井眼
extra rapid harding Portland cement超快速硬化波特兰水泥
extra slim hole极【特】小井眼
extra slim hole超小井眼
extra strong加强的
extra voltage极高电压
extra-heavy drill rod厚壁钻杆
extra-heavy pipe厚壁钻杆
extra-heavy pipe加重管
extra-heavy swage加重异径短节
extra-heavy swage厚壁大小头
extra-high tension最高张力
extra-high tension极高电
extra-long near-bit stabilizer超长近钻头稳定器
extra-low density cement slurry超低密度水泥浆
extra-strong pipe超强管
extra-strong pipe加强管
extra-strong pipe加重管
extra-strong pipe特厚壁管
extra-weight drill pipe加重钻杆
national extra fine thread美制超细扣螺纹
reverse out extra cement反循环出多余水泥
unified extra-fine thread统一标准特细螺纹