Molecular Sieve 3A,4A,5A,13X,Glass insulating We regularly supply Molecular Sieve,which is a kind of alkali alumino silicate ,be able to adsorb molecules with different diameters. Now we supply Molecular Sieve 3A,4A,5A,13X,etc. We supply two different sizes : Bar Size and Ball Size We also supply them in different diameters or as your requests. Application : Petrochemical industry, food industry,Pharmaceutical industry,Hollow glasses industry,etc.