How To Identify High-Quality PET Plastic Raw Material
As a plastic raw material, PET mainly includes polyethylene terephthalate PET and polybutylene terephthalate PBT. Polyethylene terephthalate is also commonly known as polyester resin. It is a condensation polymer of terephthalic acid and ethylene glycol,… How To Identify High-Quality PET Plastic Raw Material