Saint- Gobain (France)
Armstrong (U.S.)
Knauf Insulation (U.S.)
Beijing New Building Material Public Limited Company (China)
Jiangsu Burgeree New Technology Materials Co
LTD. (China)
Beiyang Building Material Co.Ltd
Greener Acoustics (South Africa)
Leeyin Acoustics Technology Co. Ltd (China)
Hunter Douglas (Netherlands)
Hebei Borunde Building Materials Co. Ltd(China)