为提高国产钻杆的市场竞争力，改善其使用性能，我们与宝钢合作，开展了《高强度钻杆的开发》这一国家级课题。
In order to improve on the properties of drilling pipe and its competitive price, a research on design and manufacturing high strength pipe is done based on a cooperation between DUT and Bao Steel.
高强度石油钻杆在钻井设备和工具中占有十分重要的地位。
Among oil well drilling equipment and tooling, the high - strength drill pipe plays a very critical role.
研究开发成功的SQ系列高强度绳索取心钻杆首次采用了薄壁钻杆内镦粗技术。
Inner upsetting technology for thin wall drilling pipes was used in Series SQ high strength wire line drilling pipes.
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