You mentioned the hoist height is 20m and sheave diameter is 260mm. However, In how many falls does the wire rope work?
You mentioned the hoist height is 20m and sheave diameter is 260mm. However, In how many falls does the wire rope work?
你曾提到过,升起来的高度为20米,滑轮的直径为260毫米,那么需要放下多长的钢索才可以呢?