发布时间:2025-02-05 16:29:24
在机器背后,有一个大标签的,标签上面就有,或者监护仪正面的左上角/右上角也有。
钢结构中预埋件怎么设计例如埋板的规格植筋的规格这些又是怎么计算得来的
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