https://www.hnjcrb.com/product/vring/electric-machinery-use-vd-ring.html   Features: 1. Easy and reliable installation and teardown 2. Both sealing and dust prevention 3. Pure rubber elastomer material without metal 4. Reduce the design aspects of the workers, there is no installation and processing requirements 5. Cancel the...

https://www.hnjcrb.com/product/ed-ring/ed-flat-rubber-ring-for-screw.html。 Material:85 Shore A NBR,80 Shore A FKM Standard: DIN 3869,17 standard sizes in total Sealing form: End face Work pressure: maximum...