| "manhole " CNS Standards List| Inter locking | Grades Packing | Concentric Plugs | Transmission non | Method Test | Method test | Single start | Sesame | | 
| 
 | CNS 3803 
			            2021 Edition Precast reinforced concrete manhole for sewerage work 磨石子板及磨石子地磚 |   | |
| 
 | CNS 6176 
			            2019 Edition Ships' manholes 船用人孔 |   | |
| 
 | CNS 10071 
			            2019 Edition Small Size manhole for Marine Use 船用小型人孔 |   | |
| 
 | CNS 4995 
			            2018 Edition Reinforced Concrete manhole Blocks for Sewerage Work 下水道用鋼筋混凝土人孔井壁 |   Translated | |
| 
 | CNS 14813 
			            2018 Edition Polyester resin concrete manhole 聚酯樹脂混凝土管(明挖施工法用) |   | 
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