Non-metal building materials, namely, marble, granite, limestone, travertine, stone, onyx, sandstone, ceramic tiles, and ceramic slabs; Works of art of stone; Concrete; Marble; Artificial stone; Non-metal tiles for building; Parquet flooring; Wainscotting, not of metal

Megaphones; Pre-amplifiers; Audio-receivers and video-receivers; Audio switching apparatus; Digital to analogue converters; Electrical adapters; Electronic switchers for audio and video signals; Power amplifiers; Power connectors; Sound transmitting apparatus