… material (for example, petroleum bitumen or coal tar pitch). …
Explanatory notes
… These articles usually contain fillers such as sand, slag, chalk, plaster, cement, talc, sulphur, asbestos fibre, wood … in blocks of the kind remelted before use are excluded ( Chapter 27 ) whether or not the materials have been refined … to which of the components gives the goods their essential character. Metal tubes and containers (e.g., of cast …