我的梯子重是要買個結實不晃的,但又不想買太貴的。是鋁的。我想消防隊應該是用更好材料,碳鋼,鈦合金什麽的,又輕又結實。
我的梯子重是要買個結實不晃的,但又不想買太貴的。是鋁的。我想消防隊應該是用更好材料,碳鋼,鈦合金什麽的,又輕又結實。
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