Through developing many years,now we can produce a series of this product of which, on request the bulk density can be adjusted from 0.3 to 0.7g/cm3,the pore volume from 0.5 to 1.5ml/g. Welcome old and new customers to develop this product together with us. Different catalysts needing different catalyst carrier is the special property in industry. So according to this property, our Co has grasped the control nethod of carriers' physical and chemical properties and can adjust technology conditions on users' request. We also would like to develop and test more kinds of low-sodium alumina carriers with different pore sizes or different granular sizes. We wish that, with the support of all old and new customers, many kinds of activated alumina will appear in the market.