Fire efficiency isn't just the core; brace alloys, screw grades, and surface systems all influence scores

https://www.scribd.com/document/1041492153/The-Legacy-of-Hand-Fabricated-Metal-Personalized-Leader-Boxes-Designed-to-Sustain-a-Century-231508

Fire efficiency isn't just the core; brace alloys, screw qualities, and finish systems all affect ratings, so settings up are evaluated together for real-world conformity.