PSFRML is Flame-Retardant Masterbatch of HIPS which maintain good mechanical properties, aging resistance, thermal stability and good processibility and the flame retardant grade could be changed from UL-94, V0, V1, V2 to HB. The mixture of flame retardant masterbatch and HIPS can be an alternative flame-retardant HIPS, used in television, housing appliances, low-voltage electrical switches, electrical connectors, communications equipment's, lighting, decorative Christmas lights, Mine electrical appliances, electrical parts and so on.