ZhangJiaGang Sinkwang New Construction Materials Co., Ltd. Is a Korean company, a manufacture of various boards and the base operations of Fiber Cement Board, CRC Board, Magnesium Oxid Board, Mgo-Gypsum Board, WoodGrain Calcium Silicate Board, Glass Fiber Ceiling, Mineral Wool Ceiling, Steel flooring and many other fire resistant, Sound absorbing, decorative board. All the products have the certification: ISO9001 2000 International quality certified system. The hottest products is the WoodGrain Calsium Silicate Board, there are 35million family using the Sinkwang WoodGrain Calsium Silicate Board by now. The Sinkwang High Frame Steel Flooring also have a good performance in the international market, All Sinkwang will be hot sold in all over the world.