"Resilient - Seated G " CNS Standards Search Result |
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CNS 12795
- English Version Resilient - Seated Gate Valves For Water Works 水道用彈性座封閘閥 - 英文版 |
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CNS 12795
- English Version Resilient - Seated Gate Valves For Water Works 水道用彈性座封閘閥 - 英文版 |
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