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[国外标准] IEC 61156-7:2023 - Multicore and symmetrical paiquad cables for digital communicatio
P:2023-12-01 23:09:42
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IEC 61156-7:2023
Multicore and symmetrical pair/quad cables for digital communications – Part 7: Symmetrical pair cables with transmission characteristics up to 1 200 MHz – Sectional specification for digital and analogue communication cables
paper insulated concentric quad - 纸绝缘同心四线组 （0） 投诉
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