"monhole" CNS Standards List| Photoelectric Controls | Method test | Machine Taps | Refrigerated frozen | Electric vehicle | 250V Single | Methods test | Bolted Connections | |
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CNS 4996
2018 Edition Method of Test for Reinforced Concrete monhole Blocks for Sewerage Work 下水道用鋼筋混凝土人孔井壁檢驗法 |
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