| "Mix design " CNS Standards List| Sands buildings | Marking Hatchway | Microbiological method | Basic Environmental | Base Tangent | Information technology | Involute Splines | Method 42 | | 
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 | CNS 12891 
			            2022 Edition General requirements of Mix design for concrete 混凝土配比設計一般要求 |   | |
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 | CNS 12891 
			            2019 Edition Mix design criteria of portland cement concrete 混凝土配比設計準則 |   | 
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