本文介绍了弱包镶强耐磨性胎体钻头的基本原理及使用效果。

This paper describes the basic principle and use of the bit with weak holding and high wear resistant matrix.

youdao

本文介绍了弱包镶强耐磨性胎体钻头的基本原理及使用效果。

This paper describes the basic principle and use of the bit with weak holding and high wear resistant matrix.

youdao