1, plastic material called resin polymer matrix are the main ingredients.

2, plastic raw material: is made up of synthetic macromolecular resin (polymer) as the main ingredients into a variety of support material or with certain additives, at a specific temperature, malleable and liquidity under pressure, can be molded into shapes, under certain conditions, and keeping the same shape of material.

3, polymer: means that polymerization process produces pure material or polymer material. Regardless of natural resins or resin is high molecular weight polymers, known as polymers.