As for tortillas, I don't know how they're made. But I gather one grinds-up some corn or whatever, adds ingredients, forms it somehow, and then bakes. That process can be called "manufacturing," especially if the tortillas are mass-produced somehow.
If I understand your chart correctly, these items are components of some other food.
As a matter of fact, many places making tortillas are called "tortilla factories" and they are much like donut shops with the conveyor belts.
The chart is confusing if a tortilla is the same as an orange or apple.