"Hollow concrete " CNS Standards List| Fish Plates | Plain Washers, | Methods determination | Arbor Nuts | Ultrasonic Testing | Ejector Rod | Method sampling | Plastic Bobbins | |
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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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