The enlarged end of the lower rod sleeve is formed with at least one through hole facing to the porous piece.
中下杆套筒扩大结束形成至少在面向一块多孔洞之一。
The control rod is inserted into the containing via hole from top to bottom, and the lower end of the control rod supports against on the fusible body.
该控制杆，它从上往下插接进该容置通孔，而且，它下端抵靠在可熔体上。
The entire door type scaffold is characterized in that the connecting bar and the upright rod are welded together through a welding hole on the upper end of the upright rod;
它包括立杆、连接棒、安全销，其特征：通过立杆上端的焊接孔，将连接棒和立杆焊接在一起；
Decentraction of the conn-rod small end hole center with the excircle center of the conn-rod small end hole blank, which causes the hole wall of one side getting thin with the strength dropping.
连杆小头孔中心与连杆小头孔毛坯外圆中心不同心，使一边孔壁变薄，强度下降。
The utility model comprises a support frame provided with a base, a hollow field rod fixed integrative with the support frame through a fixed bolt capable of passing through one end mounting hole;
本实用新型的构成包括：设置有底座的支撑架、通过可径向穿过其一端安装孔 的固定栓与所述的支撑架固定为一体的空心标杆；
The utility model comprises a support frame provided with a base, a hollow field rod fixed integrative with the support frame through a fixed bolt capable of passing through one end mounting hole;
本实用新型的构成包括：设置有底座的支撑架、通过可径向穿过其一端安装孔 的固定栓与所述的支撑架固定为一体的空心标杆；
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