7.5m trailer seven-core wire 7-core large circle helix semi-trailer tractor universal 7-hole wire

Trailer seven-core helix, trailer 7-hole connecting wire, trailer spring wire
Purpose: Trailer trailer power signal electrical system connection line
Product model: 7-core large coil high-quality spring reinforced aluminum head
Applicable models: Universal for various models
Wire gauge: 7x0.75 square
Length: about 7.5 meters
Wire diameter: 12mm
Core: red copper
Voltage: 24V
Plug: 7-hole aluminum alloy head
Number of laps: about 22 laps (large circle)
Ring outer diameter: about 105mm