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人字梯子制作尺寸
更新时间: 2020-11-30 14:06:04  

体量的截面尺寸≥3*8cm,踏板的截面尺寸≥4*4.5cm,踏板间距为27.5-30cm,最下面一个踏板与两梯梁底端的距离为27.5cm,人字梯总长度≤5cm,梯宽度≥30cm,梯梁与踏板夹角为75°15′,木折梯的工作角度为75°土5°。人字梯的材料要求主要有:梯梁和踏板的用材其斜纹在任何1m材长上,平均倾斜高度不得大于80mm。梯梁和踏板均不得含有髓心。

关键词: 梯子 制作 尺寸

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