plastic material
We often say that the plastic, are all collectively referred to plastic varieties, its application is extensive and, therefore, classification is also different. By end-use can be roughly divided into two general types of plastics and engineering plastics. General plastic such as polyethylene (PE), polypropylene (PP), polystyrene (PS), modified polystyrene (such as: SAN, HIPS), polyvinyl chloride (PVC), which are day-to-day the most widely used Materials, modest performance and low cost. Engineering refers to a number of mechanical parts or engineering structural materials such as industrial quality plastic. Its mechanical properties, electrical properties, on the chemical environment of tolerance, high temperature, low temperature tolerance, etc. are more superior characteristics, even at the project is technically able to replace some plastic mold or other materials. Common there is ABS, polyamide (abbreviated PA, commonly known as nylon), polycarbonate (PC), polyoxymethylene (POM),