... 2, ISO9001,ISO14001; 3, Oil seals, Water Seals, Air Seals Silicone rubber washer: Silicone Rubber Seals Gasket Specification1, MaterialNBR, NR, EPDM, Silicone, SBR, etc2, Material Rohs-SGS ... C to + 150°C4, Hardness30-90 shore A5, TypesOil Seals, Water seals, Air seals, Gaskets, Nonstandard.6, Tolerance±0.1-0.3mm7, ... getting the deposit if need to develop new mould. Silicone rubber washer