... /Ozone/Temperature/Abrasion resistant 4.OEM/ODM High quality automotive rubber parts 1. Materials advice: silicone and rubber (EPDM, also NBR, SI, SBR, CR ... reach ±3 shore A tolerance.8. High QA/QC system: excellent chemical and physical property, high/low temperature resistance, oil and fuel ... : plastic bag inside, strength carton outside, or as your request. High quality automotive rubber parts