HDPE pipe to connect the use of hot-melt or fused welded casing connection.
管采用热熔对焊连接或电熔套管连接。
It has reference role to the researches, manufacture and the usage of straight welded casing in our nation.
对我国有关单位今后研究、生产、使用直缝焊接套管有参考作用。
The result showed that the stress and deformation of the being designed welded casing under static state wer…
可进一步对焊接机壳进行动态特性分析，以便为改进设计提供更可靠的理论依据。
It is introduced in brief that the domestic and foreign employed situation of straight welded casing, manufacture technology and production condition, and some researches being done at present.
简要介绍了直缝焊套管国内外使用情况，生产技术以及国内外生产现状，目前正在进行的一些试验研究工作。
Roof framings and not yet welded to them casing parts.
车顶构架，还没有焊接零件。
This adapter may be threaded or welded onto the casing, and may have a flanged or clamped connection to match the BOP stack or wellhead.
该接头也许是用螺纹与套管连接在一起，或焊接在一起，以及可能还有一个法兰或卡箍连接与防喷器组或井口配接。
This adapter may be threaded or welded onto the casing, and may have a flanged or clamped connection to match the BOP stack or wellhead.
该接头也许是用螺纹与套管连接在一起，或焊接在一起，以及可能还有一个法兰或卡箍连接与防喷器组或井口配接。
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