hat
materyèl polymère sitou gen ladan plastik jeni, biyo-plastik, plastik tèrmodursisabl, rezin fotosansibilite, elatriye, ak pèfòmans nan diferan kalite materyèl se byen diferan.
eng
Polymer materials mainly include engineering plastics, bio-plastics, thermosetting plastics, photosensitive resins, etc., and the performance of different types of materials is quite different.