... the material to use the high quality carya shell is a raw material, undergoes, polishing, to steam stave washes, the medicine ... up enterprise's water treatment in the petroleum, has degree of hardness to be high, the wearability, resistant to compression is ... to the oily sewage processing effect. Fruit Shell Filter Sand Technical SpecificationITEM NO.UNITDATA1. Oil removal rate%90-952.Seston removal ...