What are your requirements?
Created by plating copper onto a rotating drum. These are further classified by surface profile (e.g., standard, low-profile, high-temperature, and high-elongation). ipc-4562 pdf
When a PCB is qualified to IPC-6012, the copper foil used in its construction must be procured in accordance with IPC-4562, creating a complete chain of traceability from raw material to finished product. What are your requirements
Dictates how much mechanical stress the foil can endure before fracturing. This prevents cracking in high-stress areas like via barrels and flexible hinges. ipc-4562 pdf