19 terracotta, limestone, marble, granite, slate, and ceramics for further manufacture of floors, walls, roofs, countertops, vanities, coping, fireplaces, fountains, columns, stairs, walkways, and other architectural and landscaping elements
37 construction and maintenance of floors, walls, roofs, countertops, vanities, coping,fireplaces, fountains, columns, stairs, walkways and other architectural and landscaping elements