Petroleum and natural gas industries - Corrosion-resistant alloy seamless tubes for use as casing, tubing and coupling stock - Technical delivery conditions.
石油和天然气工业。作外壳、管道和连接材料用的耐腐蚀合金无缝管。交货技术条件。
The features of the tubes are orthotropic, varied in thickness and without coupling effect.
该管的特点是正交异性、变厚度、无耦合效应。
An indexing conveyor moves tubes through cap and coupling application stations, after which bar code labels are applied to the outside diameter of the tubes.
在管身外侧贴完条形码标签之后，分度输送机移动管通过管帽和拧接头机台。
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