... cnc sample parts/ precision machining drawing part/ mechanical piecesSpecifications: 1) Material: Steel, Brass, Copper, Stainless steel, Plastic, Aluminium, POM, Delrin, Titanium Alloy ... etc.2) Surface treatment:Zinc plating, Anodization, Chemical fim, Powder, Passivation, Sand blasting, Brushing & ploshing etc.3) Processing equipments: CNC ... machining center, CNC lathe, ...