https://mcd-co.com/pctfe-back-up-rings/
PCTFE back-up rings | McDowell & Company
back up ringsmcdowellcompany
https://www.carlocksealing.com/b12-internal-back-up-rings-triangular-face-anti-extrusion.html
B12 | Back-up Rings | Internal Sealing | Triangular Face | Carlock Sealing
B12 Internal Back-up Rings feature triangular faces and a positively activated design to prevent seal extrusion. Available in PTFE, POM, and PU. Direct Factory...
back up ringsinternalsealingtriangularface
https://www.seals-shop.com/eu/en/all-products/rod-seals/turcon-wedgpak/two-back-up-rings-in-z43/c/c2-rod-seals-turcon-wedgpak-two-bckup-rings-z43
Two Back-up Rings in Z43 | Seals-Shop.com
back up ringstwosealsshop
https://www.ptfe-cc.de/en/downloads/product-data-sheet-for-back-up-rings
Product data sheet for back-up rings - Downloads - PTFE Competence Center
product data sheetback up rings