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- コンクリート.コンクリート工学 (3)
- Building materials--Congresses (2)
- Concrete construction--Congresses (1)
- Concrete--Cracking--Congresses (1)
- Concrete--Thermal properties--Congresses (1)
- Lightweight concrete--Congresses (1)
- Plant fibers--Congresses (1)
- Plastics in building--Congresses (1)
- Plastics--Congresses (1)
- 建築材料 (1)