2) PC: high impact strength, good dimensional stability, colorless and transparent, good coloring, good electrical insulation, good abrasion resistance, can be heat-resistant, a transparent material;
3) PMMA: commonly known as Plexiglas, better transparency than PC materials, good transparency and excellent heat resistance. p>3) PMMA: commonly known as plexiglass, better transparency, transparency than PC materials, and excellent heat resistance;
4) POM: is a smooth surface and glossy hard and dense material, bending strength, fatigue strength, wear resistance are relatively good, suitable for some gear parts;
5) PP: polypropylene, low density, strength, rigidity and hardness. Hardness and heat resistance are better than low-pressure polyethylene, can be used at a temperature of about 100 °;
6) PA: also known as nylon, high mechanical strength, good toughness, non-stick glue, not recommended to dismantle the parts for processing;
7) PPS: a high-temperature-resistant material that can be used at a temperature of 230 ° does not produce deformation.