Edge high quality is every little thing: deburring, cleaning

https://www.scribd.com/document/1041618560/Leader-Boxes-Developed-to-Last-The-Architect-s-Copper-Criterion-223754

Edge high quality is whatever: deburring, cleaning, and micro-grain sanding prepare surface areas so coverings bond equally and revealed seams check out as fine-tuned, continual planes.