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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 in following power distribution equipment electric appliance measuring appliance makes the control signal protectionsurvey. | |||||||||||||||||||||
執(zhí)行標(biāo)準(zhǔn) standards implemented : mt818-1999 | |||||||||||||||||||||
型號、名稱及使用范圍 model desc-riptionsuse scope | |||||||||||||||||||||
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