"Precast reinforced c " CNS Standards Search Result |
CNS 3803
- English Version Precast reinforced concrete manhole for sewerage work 磨石子板及磨石子地磚 - 英文版 |
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CNS 15431
- English Version Precast reinforced components for concrete fences 下水道用鋼筋混凝土預鑄人孔 - 英文版 |
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