... ,plastic mould, Preform mould , silicone mould ,plastic products, rubber product. Applicable: medical, household,commercial, agricultural,office supplies,industries ... Product &Technical description: 1.ItemO ring2.MaterialSilicon,NBR,SBR,EPDFM,PU, Natural rubber3.Sizestandard, Nonstandard, Customized4.ColorCustomized5.StandardFDA, REACH, ... any interesting ,enquiry us today! China Supplier Rubber O ring