Explanatory notes
… the structure of the product), crushed, ground, powdered, levigated, sifted, screened, concentrated by flotation, … product itself is not changed), crushed, ground, powdered, levigated, sifted, screened or concentrated by flotation, …Legal note
… the structure of the product), crushed, ground, powdered, levigated, sifted, screened, concentrated by flotation, …