"Hollow concrete " CNS Standards List| AC Circuit | Method Test | Glass Beakers | Valve Dissolved | Bushes Railway | Slaked lime | Switches appliances | Thermoelectric Type | |
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CNS 8905
2018 Edition Hollow concrete blocks for buildings 建築用混凝土空心磚 |
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CNS 8905
2018 Edition Hollow concrete blocks for buildings 建築用混凝土空心磚 |
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