Specification:501

Partide-Diameter Range:0.425-0.70

Screen Efficiency:>0.7mm<1%；0.425-0.7mm>98%；<0.425mm<1%

Expandable Range:15-30

Characteristics&Application:Good flame-retardant, goodfrothing good preserving, goodbinding and low heat-conductingrate.Oxygen index over 30 (testingafter 7-14 days flowing EPS beingshaped), used as building-materials, materials for heatpreservation, thermal insulatlonand for packing precision instruments.