Crastin ST820 BK503
Crastin ST820 BK503 DuPont Engineering Polymers PBT is an unreinforced, Super Tough, black polybutylene terephthalate resin for injection molding.
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。