1.All sizes 1-3mm,3-5mm,20-100mesh,100-2000mesh 2.Natural and calcined grades 3.Delivery:10-15days 4.25kg/750kg packing bags Size: 20mesh, 40mesh, 60mesh, 80mesh, 100mesh, 200mesh, 325mesh, or accoring to customers' requirements. 1. Chemical Properties: NameSiO2Al2O3K2ONa2OMgOFe2O3TiO2S+PCaOH2OProportion44-50%20-33%9-11%0.6-1.8%0.32-2%2-6%0.7-1.2%0.02-0.05%0.02-0.77%2.62% 2. Physical Properties: ...