High mechanical strength, good toughness, tensile, compressive, and impact strength are higher than ordinary plastics. Heat resistance, smooth surface, small friction coefficient, wear resistance, low noise, excellent fatigue resistance; corrosion resistance, alkali resistance and most salt solutions, acid and alkali resistance, oil, but not strong acid oxidants; non-toxic, odorless, weather resistant It has good performance, is inert to biological erosion, and has good antibacterial and mildew resistance.