Moving, grading, levelling, scraping, excavating, tamping, compacting, extracting or boring machinery, for earth, minerals or ores; pile-drivers and pile-extractors; snowploughs and snowblowers (excl. those mounted on railway wagons, motor vehicle chassis or lorries, self-propelled machinery of heading 8429, lifting, handling, loading or unloading machinery of heading 8425 to 8428 and hand-operated tools)