... engaged in manufacturering &supplying Raw vermiculite in difference size 0.3-1mm 0.5-1.5mm 1-2mm 1.5-2.5mm ... 2-4mm 0.3-0.6mm ) with 5.5-10times expansion ratios ,special ... Raw Vermiculite size Raw golden vermiculite0-30um,0.3-0.65mm,0.65-1mm 20-40mesh,10-40mesh, ,0.3-1mm1.5-2.5mm,1 ... 60-100mesh, 200mesh,325mesh,400mesh Raw silver vermiculite0.25-0.7mm,0.3-1mm,1-2mm,2-4mm,3-8mm,4-8mm ...