本文研究了一种高硬度高韧性耐磨埋弧堆焊用金属粉型药芯焊丝。

A type of metal powder-cored wire with high hardness, wear-resistance and high toughness is studied in this paper.

youdao

本文研究了一种高硬度高韧性耐磨埋弧堆焊用金属粉型药芯焊丝。

A type of metal powder-cored wire with high hardness, wear-resistance and high toughness is studied in this paper.

youdao