A threaded coupling used to join two lengths of pipe such as production tubing, casing or liner.
连接两节管子(生产油管、套管或衬管等)所用的带螺纹的连接件。
The new Technology of Straight Threaded Coupling have been adopted in the Prestressed Resist draw Bored cast-in-place Pile of the Pile Foundation of Fujian Theatre.
福建大剧院桩基工程预应力抗拔钻孔灌注桩钢筋笼采用直螺纹连接新技术。
The new Technology of Straight Threaded Coupling have been adopted in the Prestressed Resist draw Bored cast-in-place Pile of the Pile Foundation of Fujian Theatre.
福建大剧院桩基工程预应力抗拔钻孔灌注桩钢筋笼采用直螺纹连接新技术。
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