发布时间:2025-01-21 18:57:54
同意楼上的说法,通常台阶高度不得大于220mm,宽度大于260mm。一般而言,室外台阶的高度要小于室内台阶,通常尾150mm,室内的常以165~185mm见多。室外台阶的宽度通常为300~350mm,室内为280~300mm。
工厂630kva的变压器通电第一个月工厂还没开始生产只照明空调比如500度电那这个月电费怎么算
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