The hexagon of spark plug and plug cap need align and then push down the spark plug cap and clockwise rotation it.
将火花塞帽的内六角孔与火花塞的外六角对齐后稍微用力按压并顺时针旋转一点角度即可扣住火花塞。
Hexagon socket head cap screws with countersunk head screws like.
角紧顶螺钉固定在底座上。
Hexagon socket head cap screws with countersunk head screws like.
角紧顶螺钉固定在底座上。
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