What are the differences between the cold aluminum and the plain foil used in packaging in the pharmaceutical industry? How do you distinguish them?
This is difficult to distinguish between, and if you want to say, the aluminum is relatively soft, tear up isotropic.
The plain aluminum foil refers to the annealed aluminum foil without any treatment on the surface.
Cold aluminum is cold formed aluminum foil, which is cold rolled. At this time, aluminum foil has a lot of stress.
