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 ... aging resistance. 3.Operating Temperature: -20°C~+200°C.4.Application: Mainly used for vacuum resistance, high temperature resistance, ... us, thanks. Details Show practical silicone rubber flat o ring HNBR FKM FPM VITON A VITON B GF GFLT ...