... NR , HNBR , SILICONE , VITON , EPDM ETC.SizeDifferent sizes at customer’s requestColorBlack , Read , Brown , White , Green etc. Also according to the ... materials have different performance. And we couldManufacturing at customer’s request.Rubber grommetMaterial- We use various kind of polymers ... temperature, ozone, oil, Grease resistance machine delivery method package black molding rubber seal