Expanded Perlite,perlite ore Size,0.5-2MM,1-4MM,2-5MM,3-6MM Horticulture,construction ISO9001-2000 company. Type,Raw(unexpanded) ... 30mesh,35-50mesh,50-70mesh etc.2,Expanded perlite,0.2-3mm,0.5-1.5mm,1-4mm,2-5mm,3-6mm etc.Packing,1 ... ,Raw perlite,In 25kg pp bags or in 1mt big bags for shipment.2 ... serve you soon. expanded perlite (100mesh,150mesh,1-3mm,2-5mm,3-6mm etc)