... flat gasket 1.ISO9001,FDA 2.High or low temperature resistance,ozone resistance 3.Good ... flat gasket Features:1. Main materialSilicone rubber, also can use Natural rubber, SBR, NBR, IIR, PU, EPDM, ... . OEMWelcome. According to your 2D, 3D drawings or samplesPlease let me know these information:.Material ( if ... don't know ,let me know the use).Hardness or duro.Tolerence.Color.Quantity silicone flat gasket