Metal toothed washer / corrugated metal gaskets / metal octagonal gasket / Metal Oval Gasket / Metal Jacketed Gasket one, toothed washer is constructed with a metal flat ring, with a specific processing methods in the ring plane machined into 90 degree angle waveform. Jagged metal gasket. Depending on location and requirements are different, toothed washers can be made on both sides with inner and outer rings and affixed flexible graphite or PTFE composite gasket sheet. Second, the performance and characteristics of a toothed pad, suitable for high pressure, high temperature parts. 2, strong corrosion resistance. 3, the seal stable and reliable. Third, the use of a toothed pad, temperature, depending on the material. 2, the use of pressure: up 20MPA 3, the minimum predicted specific pressure: y = 700kg/cm? 4, gaskets coefficient: m = 4.25 5, Max size: = 3000mm