PBT is a hypocrystalline material with polybutylene terephthalate polymer as the main base materials. Featuring high heat resistance, good tenacity, fatigue durability, weather resistance, low water absorption, high dielectric strength, good electrical performance, dimensional stability, good formability, strong impact creep capacity and good chemical resistance, etc., it’s easy to be made into products with glass fiber reinforcement and flame retardance, and its post processing is easy. It’s mainly applicable to PBT thermoplastic polyester series products.