钢材批发 发表于 2024-9-5 21:22

https://app.52ch.net/public/emotion/face_081.pnghttps://app.52ch.net/public/emotion/face_081.pnghttps://app.52ch.net/public/emotion/face_081.png

钢材批发 发表于 2024-9-6 00:01

https://app.52ch.net/public/emotion/face_heiha.pnghttps://app.52ch.net/public/emotion/face_jianxiao.pnghttps://app.52ch.net/public/emotion/face_jianxiao.pnghttps://app.52ch.net/public/emotion/face_jianxiao.png

钢材批发 发表于 2024-9-6 09:38

钢材批发 发表于 2024-9-6 12:01

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钢材批发 发表于 2024-9-6 12:52

wolfx 发表于 2024-9-6 14:22

能撑起以前那种老式预制板的，需要多大的工字钢？ 或者有其他好建议不，估计1.5米长度。

钢材批发 发表于 2024-9-6 14:23

wolfx 发表于 2024-9-6 14:22
能撑起以前那种老式预制板的，需要多大的工字钢？ 或者有其他好建议不，估计1.5米长度。
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钢材批发 发表于 2024-9-6 20:08

https://app.52ch.net/public/emotion/face_heiha.pnghttps://app.52ch.net/public/emotion/face_001.pnghttps://app.52ch.net/public/emotion/face_001.pnghttps://app.52ch.net/public/emotion/face_001.png

钢材批发 发表于 2024-9-7 00:34

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钢材批发 发表于 2024-9-7 15:55

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