发布时间:2025-02-05 04:57:35
铝绞线的型号表示符号为LJ。
钢芯铝绞线的型号分为:JL/G1A、JL/G1B、JL/G2A、JL/G2B、JL/G3A。
240毫米²的铝绞线,表示举橘拍为:LJ—240GB1179—83。
根据建筑地基基础设计规范gb 500072011下列何种建筑物的桩基可不进行沉降验算
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