aluminum flooring board, aluminum structure (posts and rails ) , aluminum ceiling and wall.  better duability of aluminum., long life expectancy of over tens of years.

Advantages : For better duability of aluminum , aluminum auto body has long life expectancy of over tens of years .

For better electrical conductivity of aluminum , aluminum body can be wired and granded to prevent shocks for those who walk on or touch it .

Much lighter weight than steel and oak auto bodies.

Easier to clean and unlikely to breed bacteria.