bottom installation

基本解释

Can be at the top, the bottom of the installation manual operating mechanism.
可在顶部、底部安装手动操作机构。
Knockouts suit 20mm and 25mm conduit connections on both top and bottom to facilitate installation.
顶部和底部的生死孔适合20毫米及25毫米喉管接驳利于安装。
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On completing of the wire plugging, put the function items into the matching installation bottom cases respectively, and tighten the installation screws on the screw holes.
接好线的功能件放入与之匹配的安装底盒，通过安装螺丝孔拧紧安装螺丝固定。
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