oil country tubular goods 石油专用管材 ; 石油国家管道产品 ; 越南的石油管材
steel tubular goods 钢制管材
tubular goods engineering 石油管工程
tubular goods detail 圆筒织物
oil tubular goods 石油管材
PVC lined steel tubular goods 聚氯乙烯内衬钢管规范
mechanical properties of tubular goods [力] 管材力学性能
In allusion to grooving on bar materials and tubular goods, we developed a new kind of fully automatic grooving machine.
针对棒、管料开槽的问题，提出了一种新型全自动开槽机。
The onshore pipe rack tends to have few stacked layers and instead extends laterally as needed to hold the tubular goods because space is not at a premium.
而陆地钻井由于空间不成问题，管架一般具有较少的层数，并根据需要横向延伸去存储管柱。
The factory is specialized in the processing of the welding tubular goods products. At present mainly produces the boost vehicle, the motorcycle and shelf.
本厂专业从事焊管类制品的加工生产，目前主要生产助力车、摩托车后货架。
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