The engagement section having a T-shaped cross-section may have an L-shaped member, a washer, an intermediate member, a threaded bolt and a nut.

订婚后的第一个T形截面可能有一个L形的成员，洗衣机，中间成员，螺纹螺栓和螺母。

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The engagement section having a T-shaped cross-section may have an L-shaped member, a washer, an intermediate member, a threaded bolt and a nut.

订婚后的第一个T形截面可能有一个L形的成员，洗衣机，中间成员，螺纹螺栓和螺母。

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