Clay
The radiation comes from the material used.
Dry graphite
The material used in making a puffer coat is typically a synthetic fabric called nylon or polyester, filled with insulating material such as down or synthetic fibers to provide warmth and insulation.
Silicon
i think from different gases !!!!!
It is used for making petrochemicals
tungsten or sometimes copper
mud and fibers
cotton
Leather and plastic
Steel is used to make aircraft springs.