发明授权
US07837082B2 Powder metal friciton stir welding tool and method of manufacture thereof 有权
粉末金属搅拌焊接工具及其制造方法

Powder metal friciton stir welding tool and method of manufacture thereof
摘要:
A friction stir tool has an axis of rotation and a welding tip that is made of powdered metal material.
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