Specification High Expansion Grade CodeBeads sizeFoam mulfipleFoam density(G/L)USEP-3011.00-1.6075-9011-13USE FOR ELECTRIC PACKING BLOCKP-3020.85-1.2565-7513-15CRAFTWORK, BOX ETC,ESPECIALLY USE FOR P-3030.70-0.9055-7014-18LOW DENSITY BLOCKP-4010.50-0.8045-5518-20 P-5010.40-0.6040-5020-25Fire Retardant Grade CodeBeads sizeFoam mulfipleFoam density(G/L)USEF-3011.00-1.6070-8512-14USE FOR BLOCK F-3020.85-1.2560-7014-16USE FOR BLOCK AND BIG PACKING PRODUCTF-3030.70-0.9050-6515-18USE FOR BLOCK AND BIG PACKING PRODUCTF-4010.50-0.8040-5018-25USE FOR BLOCK AND MIDDLE DENDITY PACKING PRODUCTF-5010.40-0.6030-4525-30USE FOR HIGH DENSITY BLOCK AND SPECIAL USE PRODUCT