building materials, namely, materials composed mainly of calcium silicate, used with bricks and castables with high-temperature heat insulating properties; refractory furnace linings, not of metal; refractory construction materials, not of metal; asphalt; plaster for building purposes; bricks; fired refractory materials, not of metal being building materials; erosion control mats for construction incorporating plant seeds; plastic security windows allowing communication; road and field m...