Brass and Bronze
Brass Turnings

Brass Turnings are very small shavings of brass left over from a multitude of manufacturing processes. They must be clean and free of excess oil and other contaminants. Brass Turnings are not to be confused with Copper, Stainless, or Aluminum Turnings.
Clean Bronze

Clean Bronze must be free of Steel and high lead content. It must be free of dirt, oil, or other contaminants and otherwise clean.
Clean Red Brass

Clean Red Brass has a higher Copper content than yellow brass. It must be clean and free of any attachments, excess oil, dirt, or debris. Some examples could be water irrigation equipment, or well equipment.
Clean Yellow Brass

Clean Yellow Brass is the most common type of brass that you will come across. This brass has less of a Copper content than its counterpart, Red Brass. It must be clean and free of any attachments, excess oil, dirt, and debris.
Dirty Bronze

Dirty Bronze has components or attachments other than bronze. This could be Steel , Aluminum , Copper , oil, dirt, or anything that is otherwise not bronze.
Dirty Red Brass

Dirty Red Brass has components or attachments other than Red Brass. This could be Steel , Aluminum , Copper , oil, dirt, or anything that is otherwise not Red Brass.
Dirty Yellow Brass

Dirty Yellow Brass has components or attachments other than Yellow Brass. This could be Steel , Aluminum , Copper , oil, dirt, or anything that is otherwise not Yellow Brass.
Shell Casings

Brass shell casings are the most common type of ammunition casings you will see. These can come in all shapes and sizes. They must be clean, fired, and free of any excess oil.