Qingdao Boffin-Toda Advanced Ceramics Co., Ltd is a Chinese company that specializes in manufacturing and selling ceramic foam filters for foundries. They allocate profits to research and development to improve production technologies and develop new product lines. Their main products include silicon carbide, alumina, and zirconia ceramic foam filters in various sizes and shapes that can filter molten iron, non-ferrous metals, and steel alloys at high temperatures. They also produce mullite-based honeycomb ceramic filters and ceramic pouring cups for foundries.