… or not heat-treated; macadam of slag, dross or similar industrial waste, whether or not incorporating the materials …
Explanatory notes
… or not heat‑treated; macadam of slag, dross or similar industrial waste, whether or not incorporating the materials … heading. The heading also includes shingle and flint. Round modules of flint are used in ball mills for crushing lime, … is, however, mainly used, after crushing, in the ceramic industry or as an abrasive material. Other shingle is used …