Hebei Shijiazhuang Tongda Mineral Wool Board Co.,Ltd: is the well-known industry trade company which has the features of production, the manufacture, the necessary sale and the international trade. It governs four subsidiary companies and occupies an area of 90,000 square meters. It has over 600 staffs and more than 60 technical people. It is a large-scale enterprise which produces the ordinary mineral wool board and the light sound-absorbing board. Our company has 60 million fixed assets. The annual production is 380 million. Our company has advanced craft, excellent equipment and technology, standard management and advanced technical specification. Our company introduces international advanced production craft which fuses Japanese and American types. Using European green and environmental protection examination standard, and for the Chinese Academy of Social Sciences Institute of Humanities research in China, Germany, Japan, Italy and more than 60 cities nearly 100,000 people of investigation and study, the Chinese Academy of Social Sciences designs and institutes production craft which meets consumer demand of people of all countries, and many kinds of different styles of productions.