construction materials, namely natural and artificial stones, portland and masonry cements, lime, mortar, paster, gravel, concrete and earthenware or cement pipes; products for road construction, namely asphalt, pitch and bitumen; stone monuments used for general landscaping; and stone or plaster mantels used in the construction of fireplaces

Spreader-Pulverizing Machines of Agricultural, Horticultural, Pharmaceutical or Veterinary Products, Anti-Epidermic and Anti-Epizootic Products and Parts Therefor

Non-metallic building materials, namely, concrete, cement and clinker; silica components and additives for concrete, cement, and clinker; non-metallic rigid pipes for building; asphalt, pitch and bitumen; transportable buildings, not of metal; monuments, not of non-precious metal