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