PC+PBT is a plastic alloy, which maintains the characteristics of chemical resistance and easy forming of crystalline material PBT, but also has the toughness and dimensional stability of non-crystalline material PC. Its products are widely used in automobile bumper, automobile handle, electronic components and so on. PC/PBT has the combined characteristics of both PC and PBT, such as the high toughness and geometric stability of PC and the chemical stability, thermal stability and lubrication characteristics of PBT.