发布时间:2025-02-06 01:41:45
用报纸塞进去堵满,上面用玻璃胶直接封,就算以后拆除也是非常方便的。
求一个焊管无缝钢管的规格和理论重量表规格表最主要的要包含公寸内径是多少和外径是多少急
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