"true" CNS Standards List| General rules | Information Processing | Round Thread | Method Tension | Respiratory protective | Agricultural Tactors | Railway applications | Self adhesive | |
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CNS 620
2020 Edition Method for determination of true density of refractory materials 耐火材料真密度測定法 |
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CNS 11738
2020 Edition Method of Test for Specific Gravity and true Porosity of Insulating Fire Bricks 絕熱耐火磚比重及真孔隙度試驗法 |
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