... Step Seal, Mechanical Seal, Extrusion Seals, Rotating Seals and wearable A..The domestic electric appliances profession uses seal or rubber components ... iron, microwave ovens thermostable rubberB..Electronic profession seal or rubber components, like in handset pressed key, ... including Buna-N (NBR), HNBR, VITON, Silicone, FluoroSilicone, EPDM, Teflon, Natural Rubber, BUTYL, SBR, Neoprene, HYPALON, etc. ...