Final answer:
In groove welding, features such as weld toe, weld face, and face reinforcement are important, while weld puddle is not a characteristic element.
Explanation:
Weld puddle is NOT a feature of a groove weld. In groove welding, the weld toe, weld face, and face reinforcement are essential components. The weld toe is where the weld intersects with the base metal, the weld face is the exposed surface of the weld, and the face reinforcement refers to the additional weld metal beyond the root.
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