Product Name: Round Flat NBR EPDM Viton FKM Ffkm Silicone Rubber Washer/Rubber Gasket Standard: Standard Shape: Rectangle Ring Performance: Waterproof Type: Stationary Seal Application: Pumps Material: SIL Trademark: ORK Transport Package: PE Inside, Carton Outside Specification: 12.42*1.78 Origin: China HS Code: 4016931000 Product Description Round Flat silicone rubber washerwhich area we Applied?extensively used in chemical industry, petroleumindustry, medical technique, food industry, sewage-disposal industry, steel industry, semi-conduct industry and so on.What equipment are applied?mechanical sealing, pressure vessel, air compressor, reaction vessel, heatexchanger, boiler, filter and so on.What our our main advantage?1) excellent anti-chemical character. It almost applies to all mediums.2) temperature range is very wide.3) anti oil function is very good.4) long service life.