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DIN 48055-4:1971-12 Insulator spindles for telecommunication overhead-lines; notches

标准编号:DIN 48055-4:1971-12

英文标题:Insulator spindles for telecommunication overhead-lines; notches

德文标题:Isolatorstützen für Fernmeldefreileitungen; Kerbungen

发布日期:1971-12

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