... variety of mechanical structures and spare parts. Compared to PA6, PA66 own the higher hardness, rigidity, a good ... winding housing....etc. 4) Product listCommon engineering plastics: PBT, Nylon (PA6, PA66), PET, PC, ABS, PP, PPO, POM, HIPS ... /PBT, PBT/PET, PBT/ABS, PBT/ASA, PBT/PA6.5) CertificateAlready passed GB/T19001-2008, GB/T24001-2004 ... passed UL and CUL certificate. enginnering plastic pa66 gf30