Side top quality is everything: deburring, cleaning

https://cesarfksk421.yousher.com/copper-does-not-lie-the-instance-for-custom-made-smokeshaft-shrouds-and-a-100-year-roof-method

Side top quality is whatever: deburring, brushing, and micro-grain sanding prepare surfaces so layers bond evenly and exposed seams read as fine-tuned, continuous aircrafts.