Mar. 15, 2018
The Amored Optical Fiber Cable used for outdoor in-ground wire has aluminum
and copper wires. The insulation material of the cable is a high-quality
silicone material commonly known as semiconductor material. The high voltage now
has aluminum wires, but this year the National Grid has been replaced by more
copper, and indoor use is generally copper. However, aluminum was also used
before the 1980s, and hard wires are generally used for indoor use，the middle
copper core is single.
Our company's Flexible Metal Conduit and Liquid Tight Non-Metallic Flexible
Conduit is also very popular. Welcome to inquire.
