Logic of the nomenclature
All goods have their own commodity code. The logical progression in the nomenclature is from raw material to semi-finished to finished goods.
Take for example cotton (see picture), which is the raw material for a fabric, which in turn is made into a T-shirt. In order to find the right commodity code, you have to follow the general rules for the interpretation of the nomenclature and also consider the code texts and the notes.
An example of the classification logic
The classification in the nomenclature has a logical progression. For example, cotton is classified under heading 5201. Knitted fabrics made of cotton are classified under heading 6006 and a T-shirt made of cotton is classified under heading 6109.