Al2O3: 16% 17min                                          
Fe: 0.5%, 0.005max                                        
As: 0.0005max                                             
Pb: 0.002max                                              
pH: 3.0min 
flake:below 15mm
granule:2-5mm
aluminium sulphate,Ironless aluminium sulphate,Aluminium sulphate powder,aluminium sulphate granule