... rubber ring industrial Waterproof auto rubber ring seal:Details of auto rubber ring: 1. Materials: comply to ROHS, NBR, Silicone (VMQ), ... other documents.6. Applications: automobile, electrical appliance, mechanical, industrial, construction, household, medical and other fields. 7. Packing: PE bags inside, ... feel free to contact at any time Waterproof auto rubber ring industrial, ISO9001-2008, TS16949