Silicone rubber O-ring for medical parts: Material: Rubber/Silicone Any color available Silicone rubber O-ring for medical parts:1)Strictly according to the ASTM20052) ... , and has a good compression set, etc. MaterialNBR, EPDM, SILICONE(MVQ), Viton(FPM), HNBR, ACM, PU, SBRColorcustomized colors are ... Lead-Time15-30daysPayment TermT/T Customer’ s designwelcome Silicone rubber O-ring for medical parts