Global O-Ring and Seal on Twitter: "Requesting for backup? We have backup rings readily available in NBR, Viton, and Teflon (Solid, Split, and Spiral versions). Use our Backup Ring Size Chart here
PTFE Backup Ring and Teflon Washer Used for Static Sealing - China PTFE Ring, PTFE Seals | Made-in-China.com
A Guide to Back-up Rings and O-Rings for Beginners | DCW
Customized PTFE Back-up Ring Manufacturers, Suppliers - Factory Direct Wholesale - Xlong
Category: Spiral Teflon Back-Up Rings | Global O-Ring and Seal