发布时间:2025-01-31 20:10:26
十年。
木头埋在土里多少年才腐烂,这要看木头的紧密路如果是红木,楠木可以放十几年到几十年,如果是松树材质松的二到三年就会腐烂。
请问河道景观绿化工程是否需要专门有资质的部门设计施工单位有无资质要求
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