... certificate 4. any specification can be made Introduce:The Aluminum Clip in ceiling tile is a kind of a large rectangle composed ... ceiling looks regular, graceful, elegant, deluxe, and open. The Aluminum Clip in ceiling tile has many merits, for exsample, non-combustible, anticorrosion ... , Belgium, etc., highly appreciated by general consumers. Sound-absorbing Aluminum Clip In Metal Ceiling Tile