What does polyester, PVC and polycarbonate mean?

* Polyester is made of polyester resin reinforced with glass fibres with a double protection against gelcoat by (UV treatment) which guarantees the absence of grinding.
* PVC is made of vinyl chloride resin (thermoplastic resin) with a UV treatment both sides.
* Polycarbonate is composed of polycarbonate resin (thermoplastic resin) .Treatment UV on one side.