Gongyi City Song Feng Mining Ltd. specializing in the production of bauxite series. Activated alumina series oxidative polymerization series four series of calcium aluminate powder product specifications, they have a superior product quality and excellent quality have created the world's top Song Feng brand, their product is every customer has ordered all thumbs said yes. Bauxite is a natural substance for uniform production of alumina and aluminum exist. The main ingredients include gibbsite bauxite, gibbsite and thin boehmite. Song-bauxite purposes: a global mined bauxite is used to produce more than 85% of alumina, followed by the production of aluminum metal. 10% of the alumina used for the production of non-metallic, non-rule of practice for the remaining bauxite applications. Gongyi City Song Feng Mining Company Limited has been to provide you with better products and the most economical solution, our technical experts ready to provide technical assistance and hope to establish a long-term pursuit of higher-value relationship with you! Website http://www.hnsfky.com Address Gongyi City, Henan Province, Du middle road