1. Material: comply to RoHS, silicone or rubber (NR, SBR, NBR, EPDM, FR and more) 2. Any colour ... size are availa 1. Material: comply to RoHS, silicone or rubber (NR, SBR, NBR, EPDM, FR and more)2. Any colour ... drawings or samples9. OEM and ODM orders are welcome natural rubber buffer rubber rubber gasket