GJW35钢结硬质合金是一种用于热作工模具的新材料。

Steel bonded carbide GJW35 is a new kind of tool and die material.

youdao

GJW35钢结硬质合金是一种用于热作工模具的新材料。

Steel bonded carbide GJW35 is a new kind of tool and die material.

youdao