China supplier Silicone O Rings,Viton O Ring,FKM O Ring,NBR O Ring, HNBR O Ring,EPDM O RingIf you are looking for a food grade o rings, the silicone material maybe the best one for you.Silicone O-Rings -Features: Broad temperature range.Odorless / non-toxicResistant to sun and ozone.Fungus resistance.Basic temperature range: -80 F to +400 F* Weaknesses:Poor tear and abrasion strength.Poor resistance to oils. Silicone O-Rings performa well in dry heat. Applications: Alcohol / Oxygen SealsElectrical / Medical SealsLow Temperature SealsThe size of silicone O ring also Can be CustomizedCustom Sizes: If you need customized size, please feel free to contact XINGKETAI sales representative Richard in the end.Application: It can using on the machine parts , on the clock , and bottle lids.and Can be using on the on the screw, can be using on the auto parts ,and so on.  Working Process  We can provide all kinds of rubber O rings, , silicone O rings,rubber grommets, rubber rings, can be all kinds of colors,or transparent. And any shapes, round, square, oval silicone washers are okay for providing.welcome to customize!Our products are sold to all over the world.Production workshopRubber mixing machineProduction machineThe molds