Car Spark plug shell 166
Thread：M14
The length of thread：L17.5+5.5
Hex Across Flats：S20.8
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Kang Chun- Create the future hand in hand
Kang Chun- Create the future hand in hand
Thread：M14
The length of thread：L17.5+5.5
Hex Across Flats：S20.8