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1·A car used hub bolt relates to a bolt.

汽车用轮毂的螺栓，它涉及一种螺栓。

2·The utility model is not easy to loose and rotate after tightening, so as to effectively improve the service life of the hub bolt and the hub.

本实用新型在拧固后不易松动旋转，有效地提高了轮毂螺栓和轮毂的使用寿命。

3·He says a little machining needs to be done on the cathode tube, making a threaded bolt hub that is welded to the tube via an inert gas shield welder, or tig.

他说，一点点加工需要做的阴极管，螺纹螺栓作出枢纽这是焊接管通过一个惰性气体保护焊机，氩弧焊或。