Prefabricated building parts of concrete, namely, pillars, balustrades, fence posts, swimming pool coping, chimneys, chimney caps and vents, stepping stones, nonmetal in-ground water run-off basins, pavers, tiles, window sills, gutters, mouldings, louvers for guiding light, window panels, support blocks, arch tiles, ventilation blocks, corbels, concrete bases in the nature of concrete blocks and concrete piles; balustrading; columns and pedestals not of metal, namely, pre-fabricated nonmetal architectural columns, building materials in the nature of concrete pedestals for elevating pavers; [ parts not of metal ] * prefabricated parts of concrete or stone * for the construction of large windows and jalousies, namely, non-metal window casements and sills, non-metal window frames; small cement bonded particle board for tiling and paving; chimneys, not of metal; chimney cowls, not of metal; static extractors for chimneys not of metal, namely, nonmetal chimney caps, non-metal chimney cowls and vents; non-metallic covers for swimming pools, namely, non-metallic fitted swimming pool covers; non-metallic moldings for cornices, namely, non-metal architectural moldings; gargoyles, namely, statues of stone, concrete or marble; pillars, pillar covers and wall covers, not of metal, namely, non-metal pillars for buildings, non-metal pillar covers for buildings, non-metal wall tiles