rubber viton o-rings 1.Quick shipment. 2.ROHS&REACH approved. 3.Most competitive price. 4.Small quantity accepted. Details about rubber viton o-rings : 1. Materials: comply to ROHS, Viton, or NBR, Silicone (VMQ), EPDM, etc. 2. Temperature: -30~200°C. 3. Hardness: 20 to 90 shore A or as your request. 4. Tolerance: strictly upon international standard, no flash. 5. Color: black, transparent, green, ...