19
Glass building materials, namely, glass panels, glass boards, glass bricks; glass-ceramic building materials, namely, glass-ceramic panels, glass-ceramic boards and glass-ceramic bricks; exterior wall materials of glass for building, namely, glass panels, glass boards, glass bricks; exterior wall materials of glass-ceramic for building, namely, glass-ceramic panels, glass-ceramic boards and glass-ceramic bricks; exterior wall materials for building, namely, glass panels, glass-ceramic panels, glass boards, glass-ceramic boards, glass bricks, and glass-ceramic bricks; interior wall materials of glass for building, namely, glass panels, glass boards, glass bricks; interior wall materials of glass-ceramic for building, namely, glass-ceramic panels, glass-ceramic boards and glass-ceramic bricks; interior wall materials for building, namely, glass panels, glass-ceramic panels,glass boards, glass-ceramic boards, glass bricks, and glass-ceramic bricks; floor materials of glass for building, namely, glass panels, glass boards, glass bricks; floor materials of glass-ceramic for building, namely, glass-ceramic panels, glass-ceramic boards and glass-ceramic bricks; floor materials for building, namely, glass panels, glass-ceramic panels, glass boards, glass-ceramic boards, glass bricks, and glass-ceramic bricks