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[国外标准] IEC 61156-5:2020 Multicore and symmetrical pair/quad cables for digital communications-Part 5: Symmetrical pair/quad cables with transmission characteristics

qiaoyuanli

P:2022-03-31 14:38:17

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IEC 61156-5-2020

IEC 61156-5:2020 Multicore and symmetrical pair/quad cables for digital communications-Part 5: Symmetrical pair/quad cables with transmission characteristics .pdf

optical-fibre self-aligning jig - 光纤自调准夹具 （1） 投诉

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