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| 號保護和測量 | |||||||||
| scope of application:this product is suitable under the mine pit exchanges the rated voltage is 450/750v and in following power distribution equipment electric appliance measuring appliance makes the control signal protection and survey. | |||||||||
| 執行標準 standards implemented : mt818-1999 | |||||||||
| 型號、名稱及使用范圍 model desc-riptions and use scope | |||||||||
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