"Telecommunication:Switching" CNS Standards List| Potassium Nitrate | 660V, Single | Method test | Method Test | Studs Welding | Test Code | Rubber Vibration | Plastics − | |
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CNS 13802-9
2021 Edition Graphical symbols for diagrams (Telecommunication:Switching and peripheral equipment) 電機工程製圖符號(電信:交換及周邊設備) |
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