Check out these cnc machined parts China images:
Steaming before boiling

Image by courtney johnston
Anodizing parts for the TC18 VFD Tube Clock www.vonnieda.org/tc18
Aluminum End Cap prior to anodizing

Image by courtney johnston
Anodizing parts for the TC18 VFD Tube Clock www.vonnieda.org/tc18
Good Anodizing

Image by courtney johnston
Anodizing parts for the TC18 VFD Tube Clock www.vonnieda.org/tc18