Fire efficiency isn't just the core; brace alloys, bolt qualities, and finish systems all impact ratings

https://www.scribd.com/document/1058495293/Hold-the-Drift-Copper-Snow-Guards-that-Protect-for-Generations-134579

Fire performance isn't simply the core; brace alloys, bolt qualities, and surface systems all affect ratings, so settings up are tested with each other for real-world conformity.