Gatorshield® is the best!
It is available in round, square, and rectangular shapes ....... in a 1/2" to 5" O.D. size range .... in a .028 to .250 wall thickness (gauge) range.
It delivers all end-users a smooth, shiny appearance.
It can be easily fabricated ..... with no deformation or flaking of the base material.
It can be produced in whatever length is meet your specific requirements.
Additionally, the zinc rich interior coating provides the inside of the tube maximum corrosion and rust protection. Inside and out