code/modules/materials/Mat_RawMaterials.dm 
| /obj/item/material_piece | Material piece |
|---|---|
| /obj/item/material_piece/metal | The metal appearance and stuff is on the parent, this is just a concrete subtype |
| /obj/item/material_piece | Material piece |
|---|---|
| /obj/item/material_piece/metal | The metal appearance and stuff is on the parent, this is just a concrete subtype |