How to refinish and polish SHAD TERRA Aluminium Cases (not for BLACK EDITION)

ADVICE: This video tutorial is only for silver Aluminium models. In case of doubts, please visit your trusted dealer. Not applicable for TERRA BLACK Edition.
When the regular cleaning is not maintained, it is possible that corrosion marks appear. In this case you can follow a polishing procedure to restore the natural aluminium finish. Please follow the instructions.

[@rizkiadithia490]

What polish brand that suggested by Shad ?