... tough even at low temperature, and high hardness in the surface, toughness, mechanical lower shock, and abrasion resistance ... ) Application:connector, motor winding housing....etc. 4) Product listCommon engineering plastics: PBT, Nylon (PA6, PA66), PET, PC, ABS, ... GB/T24001-2004 certificate. And some of the flame retardant series have passed UL and CUL certificate. Engineering Plastics PA (Polyamide)