thin wall pipe

The end trumpet and end triangle can be eliminated if a rolling process with three angles rotating is used for thick wall pipe rolling and other processes for thin wall pipe rolling.

采用三转角轧制法轧制厚壁管和相反的操作法轧制薄壁管可消除喇叭口与尾三角。

After illustrating the application of concrete thin wall pipe pile to the deep base pit support, the paper discusses its applications under different conditions and key construction techniques.

结合混凝土薄壁管桩在深基坑支护中应用的实例，探讨混凝土薄壁管桩在不同条件下的深基坑支护中的应用及其施工工艺注意要点。

In this paper, the structure feature and principle of this special drill has been introduced. Its special design is very useful for drilling thin-wall pipe.

本文介绍了薄壁管专用钻头的结构特点及工作原理，其结构设计新颖，对薄壁管的钻削有实用价值。