The range of alloys utilized is sensational: weathering steel for patina, marine-grade aluminum for weight financial savings
https://www.scribd.com/document/1058932948/Leader-Boxes-Constructed-for-Generations-Hand-Fabricated-Copper-That-Doesn-t-Compromise-215768
The range of alloys utilized is spectacular: weathering steel for aging, marine-grade aluminum for weight financial savings, and duplex stainless for deterioration resistance in harsh environments.