A few nice aluminium cnc China machining images I found:
Steaming before boiling
Image by courtney johnston
Anodizing parts for the TC18 VFD Tube Clock www.vonnieda.org/tc18
Steaming before boiling
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