Cast coated with density (more than 150g/m) belong to level degree. Generally white, whiteness over 85%, also colorful. it's   munltivariable uniform, fibrous tissue and smoothness.

PET is formaluted OCH2-CH2OCOC6H4CO, named polyethylene terephthalate, simply PET, composition of material EG and PTA. Guage is 25Mic, 50Mic.

PET is polymer with waterproof, anti-acid and anti alkali, the application is suitable for digital, cell phone battery and other product. In common, PET is transparent material.