FZ/T 51005-2011
Fiber grade polybutylene terephthalate chip
HG/T 5510-2019
Plastics-Poly (butylene terephthalate) (PBT)
T/ZZB 0877-2018
HG/T 5870-2021
Technical specification for green-design product assessment—Polybutylene terephthalate resin
HG/T 5869\uff5e5871-2021
HG/T 5510\uff5e5511-2019
T/CPCIF 0037-2020