Side quality is every little thing: deburring, cleaning

https://travisptln953.raidersfanteamshop.com/copper-does-not-lie-why-architects-pick-salvo-metal-works-for-custom-smokeshaft-shrouds-that-last-a-century

Edge high quality is everything: deburring, brushing, and micro-grain sanding prepare surfaces so coatings bond evenly and exposed seams read as fine-tuned, constant airplanes.