锁紧圈 strengthening ring
clamp ring
closing ring
- 锁紧主油针到底,放开2圈。
Open the needle valve 2 _ turns from the fully closed position. - 如:膨胀螺丝、平键、双头螺、内外六角螺栓、马车螺丝、档圈,销,键,非标准件,六角螺栓,,等六角螺母、锁紧螺母、法兰面螺母、薄型螺母等等。
For example: Inflates the screw, key, double head the spiral, inside and outside hexagon bolt, the horse-drawn vehicle screw, the hexagonal nut, locks the nut, flange surface nut, thin nut and so on.