… tamping, compacting, extracting or boring machinery, for earth, minerals or ores; pile-drivers and pile-extractors; …
Explanatory notes
… tamping, compacting, extracting or boring machinery, for earth, minerals or ores; pile‑drivers and pile‑extractors; … forestry machinery ( heading 84.32 ), for “attacking” the earth’s crust (e.g., for cutting and breaking down rock, … in mining and oil well prospecting, for the sinking of artesian wells, etc. These machines are of two main types : …