Clay
The radiation comes from the material used.
Dry graphite
rubber processing oil is used as a lubricator in tyre industry and as a raw material for plastic, chemical and rubber industry.
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.
i think from different gases !!!!!
It is used for making petrochemicals
tungsten or sometimes copper
Silicon
mud and fibers
cotton
Leather and plastic