... (4) Water resistance (5)free of Asbestos Fiber Yichang Hongyang New Materials Co., Ltd., which belongs to Yichang Hongyang Group, was established ... , 20km away from Yichang Port. We specialize in manufacturing Fiber Reinforced Calcium Silicate Boards. Our factory covers an area of ... ) Good for environment: Hongyang board is100% free of Asbestos Fiber and will not cause any harm to human body or ...