"monhole " CNS Standards List| Components rolling | Corrosion Metals | Picks, One | Method analysis | Systems engineering | Methods Test | Basic Environmental | Closed Insert | |
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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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