Finding out about galvanic corrosion changed my describing; isolators, sealers
https://www.scribd.com/document/1041492153/The-Legacy-of-Hand-Fabricated-Metal-Personalized-Leader-Boxes-Designed-to-Sustain-a-Century-231508
Knowing galvanic deterioration altered my outlining; isolators, sealants, and suitable bolts stop dissimilar steels from weakening in seaside or polluted air.