... shipment. 4. Certify to ISO9001:2008, ROHS, ect. Description of Good Quality Car Rear Wheel Hub Oil Seal for Aging Resistant:1. Materials ... ,E/A, ECO, CSM, VITON, FKM, FPM, etc. 2. Characteristics: good physical and chemical properties wheel hub oil seal. 3. Hardness ... , medical and other fields. 10. QC/QA: we have strict quality control and assurance systems, have 30 QC technicians and the ...