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Hebei Chida cool roof rating council jobs

 People involved | Date:2025-08-14 06:06:41
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  • Heat range is another important consideration when selecting a spark plugspark plug in car engine. A lower heat range plug will have a cooler tip, which can improve fuel efficiency but may result in reduced power output and increased emissions. Conversely, a higher heat range plug will have a hotter tip, which can increase power output but may also lead to pre-ignition and engine damage if not properly managed.