O-ring(rubber o-ring,silicone o-ring,nbr o-ring) 1)durable,collapsible,pressurization 2)high quality, reasonabl DetailsWe manufacture ... to every client's requirement.1.MerchandiseO-ring(rubber o-ring,silicone o-ring,nbr o-ring)2. MATERIALasbestos fibre, rubber and heat-resisting ... ,2.0,2.5,3.0,4.0,5.0,6.0mm 6. Resistance to media Water, seawater, steam, diluted acid & alkali ...