... gasket 3.size: any design silicone rubber mold,gasket sheet,gasket setmaterial:SBR rubber gasket,EPDM.CR,NR,NBR,silicone,vitonType ... corrosion gas, prevent the leak of othe gas.Viton rubber gasket1.hardness 55-85+/-5 shore A2.tensile strength ... 12.5Mpa3.density 1.9g/cm34.elongation 300%Viton rubber gasketMaterialViton,epdm,nbr,siliconeColorAny color will be avaliableSizeCustomizedCertificationISO9001- ...