91.100.15 Mineral. Including earth, sands, clay, slates, stones, etc. / Минеральные материалы и изделия. Включая землю, песок, глину, шифер, камень, кирпич и т.д.
Ключевые слова:
Aggregates, Natural aggregates, Synthetic aggregates, Rocks, Construction engineering works, Water retention and flow works, Particle size distribution, Specification (approval), Conformity, Quality assurance