... is physical composite modification, such as PC/PBT, PET/PBT, ASA/PBT, PBT/ABS, PBT/PA6 etc., the above alloys have ... , PC, ABS, PPO.Plastic alloys: PC/PBT, PBT/PET, PBT/ASA, PBT/ABS, PBT/PA6.5) Certificate Already passed ISO9001-2008 ... , ISO14001-2004 certificate, And some of the flame-retardant series have passed UL and CUL certificate. ASA/PBT alloy