In addition to the slag is a number of national research institutes, experienced five years of research and development of a new type of composite slag remover. Its product quality is proved by the actual use, the product quality in the domestic same industry in the leading level, can be comparable with foreign similar imported products, and the price is far lower than imported products. Now with the domestic more than 3000 enterprises and furnace company perennial supply and exported abroad, it is the main raw material is volcanic minerals, main components of silicate after special processing ratio. It is mainly used in casting process of iron and steel in aqueous solution in the slag, insulation.