发布时间:2025-02-04 05:42:18
所用的钢材要根据彩钢复合板的厚度来定,需要方管就可以,彩钢板的宽度有一米和八十厘米的,长度根据你所用的尺寸来定
自建房有5层楼 要在一楼搭建冷库房放里面 请问长时间对墙壁和梁 柱子有
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