1.K2O<12.5% Na2O 0.5% Fe2O3 0.1~0.3% Al2O3 17% H2O 0.5% Size: 48 mesh Package: 50kg net each. 2. K2O<10% Na2O>3.0% Fe2O3>0.1% Al2O3>16.5% H2O 0.5% SiO2<68% Size: 200 mesh Package: 50kg net each.