Low-frequency cables and wires with p.v.c. insulation and p.v.c. sheath - Part 6: Signalling cables in singles for telecommunication equipment and installation— 23 стр.
Low-frequency cables and wires with PVC insulation and PVC sheath. Part 6: Signalling cables in singles for telecommunication equipment and installation— 12 стр.
Low-frequency cables and wires with PVC insulation and PVC sheath. Part 6: Signalling cables in singles for telecommunication equipment and installation— 12 стр.