... made flange gasket 4)good quality, reasonable price Silicone Rubber Injection Moldings ProductSilicone Rubber Injection MoldingsMaterialSilicone/NBR/EPDM/Vtion/SBR/NR, etc.Hardness40~90 ... : Railcars, automobile, steamboat, industrial electrical equipment, building door& window, construction machinery, construction bridges and tunnel.used in mechanical, automobile, electrical appliance ...