Product Name: Round Rubber Flat Seal Ring and Gasket Model NO.: ULT-Washer-02 Cross-Section Shape: Round Effect: Hole with Seal Application: Machinery, Industrial Component, Electronic Product, Vehicle, Household Appliance Material: EPDM, NBR, Silicone, Viton, Cr, HNBR, Nr Color: Any Color According to Pantone's Color Number Certification: SGS, FDA, Reach, RoHS and Ts16949 Process: Molding or Cutting Hardness: 30sha to 90sha Working Temp: -60 to +260