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Tuofa offers wide variety high level surface finishes. We only list some of the common surface finishing options. There are more surface finish options for custom CNC machined parts.

名前	Service	Applicable to	Machining marks	Cosmetic availability	Tolerances
As machined	CNC machining, sheet metal fabrication	Metals, plastics	Visible, light surface scratches	No	Tolerances are not affected
Anodizing type II	CNC machining, sheet metal fabrication	Aluminum	Reduced for non-cosmetic, removed on primary surfaces for cosmetic	On request	Met after anodizing
Anodizing type III	CNC machining, sheet metal fabrication	Aluminum	Visible under anodizing	No	Met after anodizing
Black oxide	CNC machining, sheet metal fabrication	Copper, stainless steel, alloy steel, tool steel, mild steel	Visible	No	Met after coating
Sandblasting	CNC加工	Metals	Removed for non-cosmetic, removed on primary surfaces for cosmetic	On request	Not affected except for specific features*
Powder coating	CNC machining, sheet metal fabrication	Metals	Removed	No	Met before powder coating
Mirror polishing	CNC加工	Metals	Removed on primary surfaces	Always cosmetic	Met after polishing
Brushing	CNC machining, sheet metal fabrication	Metals	Reduced for non-cosmetic, removed on primary surfaces for cosmetic	On request	Met after brushing
Smooth machining	CNC加工	Metals, plastics	Visible, light surface scratches	No	Tolerances are not affected
Fine machining	CNC加工	Metals	Slightly visible	No	Tolerances are not affected
Chromate conversion coating	CNC machining, sheet metal fabrication	Aluminum	Visible	No	Met after coating
Electroless nickel plating	CNC加工	Mild steel, aluminum, stainless steel	Reduced but visible	No	Met after electroless nickel plating
Brushed + electropolishing	CNC加工	Stainless steel	Removed on primary surfaces	Always cosmetic	Met after electropolishing

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