Injection Molding Surface Scratches Explained: Drag Marks, Ejection Marks, and More
Surface scratches are one of the most common quality issues in injection molded parts, but they are also one of the most loosely defined. In practice, the same visible defect may be described as a scratch, drag mark, scuffing line, or even a mold mark depending on the factory or engineer. The confusion comes from […]
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