For the wires used in the home, copper core wires are basically used at this stage. The earliest aluminum wires have been basically replaced, and rarely
Southwire 250 ft. 4/0-4/0-4/0-2/0 Gray Stranded AL SER Cable
The Pros and Cons of Copper and Aluminum Wiring - Allstar Electrical
Reasons To Prefer Copper Wiring Instead of Aluminium Wires in
BX Cable: What It Is and How to Use It
Copper vs Aluminum Wire: Understanding the Differences and Making
12 Gauge 2 Conductor Electrical Wire 12 Awg Wire Stranded - Temu
Differences Between Aluminum and Copper Wiring
Copper vs. Aluminum Wire, What to Consider
Aluminum Vs. Copper Wiring - Bryant Electric Service
Wires and Cables
Everything You Need to Know About Aluminum Welding Wire and MIG