发布时间:2025-02-06 17:53:04
加减水剂必须要在两小时内用完混凝土,坍落度小还是加水比较好,但是规范又不允许,所以你要提前跟混凝土站讲,夏天的时候按照图纸要求的再放20到40发,本来180的,放到200到220
什么是弹性漆水性漆油性漆乳胶漆如何分的类别啊都有什么特点用处是怎样谁的级别高点
2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04 2025-02-06 17:53:04