"Petrographic" CNS Standards List| Footwear − | Flexible cellular | Decarburized steel | Flat Fitted | Slotted Cheese | Radial Angular | Transistor Megaphones | Method Test | |
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CNS 13617
2018 Edition Guide for Petrographic Examination of Aggregates for Concrete 混凝土粒料岩相分析指引 |
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