What are the meanings of the English symbols on the chart?
Public relations firm is doing offline activities to create the topic, the media company is doing online media communication
Dark and beautiful: easy maintenance problems when the maintenance difficult, can not easily increase the dead inserted. Trunks: easy to install, can be added at any time plug and replace the wire, but not beautiful. Each with advantages and disadvantages.
PVC is PVC, the most commonly used, cheap. PC is polycarbonate, expensive, high strength, with a long time. . PVC resin plastic products highlight the advantages of flame resistance, wear resistance, chemical resistance, gas, low moisture permeability of water vapor. In addition, comprehensive mechanical properties, product transparency, electrical insulation, insulation, muffler, shock resistance Ye Hao, is the most cost-effective general-purpose materials. Defects are poor thermal stability and impact resistance, whether it is hard or soft PVC process prone to brittle. . PC (polycarbonate) resin is a good performance of thermoplastic engineering plastics, with outstanding impact resistance, creep resistance and dimensional stability, heat resistance, low water absorption, non-toxic, excellent dielectric properties, Is the only five engineering plastics with the only good transparency of the product, but also in recent years, the fastest growing general engineering plastics.
