... Quick shipment. 2. Large stock quantity. 3. Heat-proof o-ring seal. 4. AS568, BS, JIS, metric sizes all available. ... Description of Excellent O-ring Seal Conform to ROHS:1. Materials: can be NR o-ring seal, HNBR, Buna, FVMQ, ... NSF, KTW, WRAS, LFGB, etc. 8. Applications: automobile o-ring seal, electrical appliance, mechanical, industrial, construction, household, medical and other ...