Expanded Perlite,perlite ore Size,0.5-2MM,1-4MM,2-5MM,3-6MM Horticulture,construction ISO9001-2000 company. Type,Raw( ... -70mesh etc.2,Expanded perlite,0.2-3mm,0.5-1.5mm,1-4mm,2-5mm,3-6mm etc.Packing,1,Raw perlite ... with vermiculite and pumice.2,Construction, a kind of warm-proof materials for building the hourse, used for the ... to serve you soon. expanded perlite (100mesh,150mesh,1-3mm,2-5mm,3-6mm etc)