… stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast, shingle and …
Explanatory notes
… stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast, shingle and … stone, of a kind commonly used for concrete aggregates, for road metalling or for railway or other ballast, shingle and … of a kind commonly used for concrete aggregates, for road metalling or for railway track or other ballast. …