介绍了铝合金钻杆的结构特点和材料特性，分析了其适用范围。

This paper introduces feature and material characteristic of aluminum drill pipe and analyzes its application.

youdao

介绍了铝合金钻杆的结构特点和材料特性，分析了其适用范围。

This paper introduces feature and material characteristic of aluminum drill pipe and analyzes its application.

youdao