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Terms for subject Drilling containing extra | all forms | exact matches only
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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 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 heavy valves and fittings加重型阀门和管件
extra-high tension最高张力
extra-high tension极高电
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-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 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-strong pipe加强管
extra-strong pipe加重管
extra-strong pipe超强管
extra-strong pipe特厚壁管
extra voltage极高电压
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