Drawing format
Auto CAD, jpg, pdf, sld, step, stp, etc
Material
Stainless steel, steel, galvanized steel, aluminum, brass, etc
Process
Bending, stamping, cutting, drilling, etc
Surface treatment
Painting, plating, powder coating, galvanizing
Surface
No sharp edge, no burr, no sag
Application
Auto parts, furniture parts, construction parts, machine parts, etc