Expanded Perlite,perlite ore Size,0.5-2MM,1-4MM,2-5MM,3-6MM Horticulture,construction ISO9001-2000 ... . Type,Raw(unexpanded) perlite,expanded(poped) perlite.Size:1,Raw perlite,18-20mesh,20-30mesh,35-50mesh,50-70mesh ... ,0.2-3mm,0.5-1.5mm,1-4mm,2-5mm,3-6mm etc.Packing,1,Raw perlite,In 25kg pp ... 40'HQ,and 30M3 in one 20'container.Application,1,Widely used for agriculture,horticulture and potting soil etc. ...