The range of alloys used is stunning: weathering steel for aging, marine-grade aluminum for weight cost savings
https://telegra.ph/Leader-Boxes-Constructed-for-Generations-Hand-Fabricated-Copper-That-Doesnt-Compromise-07-03
The range of alloys used is spectacular: weathering steel for patina, marine-grade light weight aluminum for weight savings, and duplex stainless for rust resistance in severe climates.