mail: sale7@chinarubber.ccWhatsApp: 86 18631837901Contact: TracyLabel: rubber O ring, O-ring, hot-sealing silicone rubber gasket O rings, custom food grade O ring, silicone o ring food grade, fkm rubber oring, NBR 75 Shore O ring seal, FPM rubber O RingNBR/Silicone/FKM/EPDM/FPM O Ring is often used in the working environment that needs to resist of heat, chemical corrosion, oil,etc.The o rings are widely used in metallurgy, chemical, automobile, mechanical and electric power industry.The O-ring may be used in static applications or in dynamic applications where there is relative motion between the parts and the O-ring. Dynamic examples include rotating pump shafts and hydraulic cylinder pistons.