you’ll need a way to melt metal. [Jake]’s DIY foundry furnace gets hot enough to melt aluminium, and is built out a mix of scrap parts. The chamber of the furnace is built out of a water ...
Tin is still a critical metal ... The share of secondary supply of copper in global demand, including direct melt scrap in products manufacture, fell from 37% in 2015 to 33% in 2023, the IEA ...