30/50mesh ceramic sand 1,good sell overseas 2,Increase output ... into: 12-20 mesh, 16-20 mesh, 16-30 mesh, 20-40 mesh, 30-50 mesh, 40-60 mesh, 40-70 mesh ... +18 mesh-18 + 20 mesh-20 + 25 mesh-25 + 30 mesh-30 + 40 mesh-40 meshWt.% Retained0.00%3.00%28.10 ... %48.60%20.30%0.00%Sieve+30 mesh-30 + 35 mesh-35 + 40 mesh-40 + 45 mesh ...