Edge quality is whatever: deburring, brushing

https://finnjxwz518.theburnward.com/dormer-design-for-100-years-copper-that-does-not-lie-to-designers-or-proprietors

Edge high quality is whatever: deburring, brushing, and micro-grain sanding prepare surfaces so finishes bond equally and subjected seams read as fine-tuned, constant aircrafts.