Flat o ring 1.Silicone FKM FPM VITON A VITON B ... ratio 3.OEM&ODM: YES Product Description Item nameFlat o ring MaterialSilicone,,FKM,FPM,VITON A, VITON B, GF,GFLT ... .PackageNormal packing, or customizedDelivery time7-12 daysTransportation 1.For small quantity, deliver by DHL/FEDEX/UPS express fee will ... us, thanks. Details Show practical silicone rubber flat o ring HNBR FKM FPM VITON A VITON B GF GFLT ...