Method: The separate application of clamp, root elevator or drilling root canal according to different type of post pin and place of root surface.

方法：根据不同类型桩钉及根面所处位置，分别采用钳取、根尖挺挺出及钻磨取钉等方法。

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Connection between post, upper rail shall be mounted by taper pin or welding, the specified method refer to the details followed.

立柱与扶手管、杆间采用销钉固定或焊接固定的方式，具体的连接方式见后面的的详细要求。

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