
Communication cables - Specifications for test methods Part 4-7: Environmental test methods - Damp heat steady state; German version prEN 50289-4-7:2006
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Communication cables - Specifications for test methods Part 4-7: Environmental test methods - Damp heat steady state; German version prEN 50289-4-7:2006
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频