Flat o ring 1.Silicone FKM FPM VITON A VITON B ... 3.OEM&ODM: YES Product Description Item nameFlat o ring MaterialSilicone,,FKM,FPM,VITON A, VITON B, GF,GFLT ... resistance, chemical corrosion resistance of sealing materials in defense industrial airplanes and rocket, hose or other parts and automobile ... us, thanks. Details Show practical silicone rubber flat o ring HNBR FKM FPM VITON A VITON B GF GFLT ...