Some food additives also contain metallic aluminum such as alum, leavening agents, leavening agents, etc., which are also used in some fried dough sticks, steamed buns, twists, vermicelli and some puffed foods (such as potato chips).
K. Sound absorption effect
Aluminum has sound-absorbing properties and good acoustic effects, so aluminum is also used in ceilings in broadcast rooms and modern large-scale buildings. Many doors and windows in homes use aluminum alloy frames for this reason.
