For laying indoors , intunnel or cable trench, unable to bear external mechan-icalforces. Single-core cable in magnetic duct is not permissible.
室内、隧道及电缆沟等场所,不能承受机械外力。单芯电缆不允许敷设在磁性管道中。
Single-core cable in magnetic duct is not permissible.
单芯电缆不允许敷设在磁性管道中。
Single-core cable in magnetic duct is not permissible.
单芯电缆不允许敷设在磁性管道中。
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