发布时间:2025-02-05 11:53:59
没什么大的区别,无非在打固定螺栓的时候预应力预制板是不能随便乱打,只能在板与板之间受力,不然会破坏板的结构。而现浇混凝土楼板只要不是打到钢筋什么地方打固定螺栓问题都不大
我有一220v空压机但接线盒没有电机上有三个接线桩头应该咋接啊
2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59 2025-02-05 11:53:59