利用者:Ladderstaircase667653
提供: 先週の結果分析
2016年7月21日 (木) 17:43時点におけるLadderstaircase667653 (トーク | 投稿記録)による版
Let's appear at the A-frame ladder for illustration. This kind of ladder is regarded to be 1 in all probability the most typical versions. It can be recognized as the A-Frame ladder only due to the fact of its recognize A shape.