... variety of mechanical structures and spare parts. Compared to PA6, PA66 own the higher hardness, rigidity, a good resistance to wear ... listCommon engineering plastics: PBT, Nylon (PA6, PA66), PET, PC, ABS, PP, PPO, POM, HIPS.Plastic alloys:PC/PBT, PBT/PET, PBT/ABS ... flame retardant series have passed UL and CUL certificate. enginnering plastic pa66 gf30