Crastin LW9320 NC010 DuPont Engineering Polymers PBT Alloy is a 20% glass fiber reinforced polybutylene terephthalate alloy for injection molding. It has improved surface aesthetics,

聚对苯二甲酸丁二醇酯，又名聚对苯二甲酸四次甲基酯。与PET一起统称为热塑性聚酯。用于电子电气，汽车和机械设备等。