... 2. High Performance, low waste 3. Long Service life 1. Spark plugs used for Automobile, Motorcycle, Yacht, Agricultural machine and other ... certification.4. Nearly 10 years experience in spark plug.5. High quality, 15000km-50000km for spark plugs.6. OEM service is also ... available.7. Fast delivery time.8. Nice after-sale service. F7RTC Spark Plug