"drains " CNS Standards List| Health Level | Morse Taper | Personal protective | Method Test | Method test | Chemical Reagent | Wind turbines | Lifting Hooks, | |
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CNS 12938
2020 Edition Vitrified clay pipes and fittings and pipe joints for drains and sewers 排水及污水用瓷化黏土管以及其配件與管接頭 |
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