... Flat o ring 1.Silicone FKM FPM VITON A VITON B GF GFLT GLT AFLAS HNBR... 2.High price performance ... Item nameFlat o ring MaterialSilicone,,FKM,FPM,VITON A, VITON B, GF,GFLT,GLT,AFLAS,HNBR... ColorRed, blue, pink,white ... , U-type Loop, Y-type Loop, rubber strip, oil seal, rubber tubing and various rubber, appliances, hardware and machinery, ... flat o ring HNBR FKM FPM VITON A VITON B GF GFLT GLT AFLAS