发布时间:2025-01-16 21:59:23
因为缝是用白水泥填的,白水泥没有防霉的功能,要不变色下次用塑钢泥好了,,门是回潮而成的,特别是外墙门最易受潮
为什么生产pc325级水泥比表面积高生产po425级水泥比表面积低
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