Outside ladder rungs shall be painted with non-skid type paint.
外部梯级应涂以防滑涂料。
We will build your future of career with special designs, bring you a ladder-type career.
我们倾心用心设计，打造您的职业将来，诚邀您的加入！
We will build your future of career with special designs, bring you a ladder-type career.
我们倾心用心设计，打造您的职业将来，诚邀您的加入！
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