How to change COPEN spark plugs?

Tools:
Spanner No.10
Spark plug socket No.16
NGK RX spark plug （90020）
Music: Chill
Musician: LiQWYD
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ULTRAZ prvides professional automotive valeting and detailing service. Authorized reseller of Gyeon Quartz.
ULTRAZ 提供專業全方位汽車清洗及護理服務。GYEON香港指定分銷商
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