CNC Machining Parts*Casting Parts*Sheet Metal
Parts*Stamping Parts*Stamping Molds.

IATF 16949 - ISO 9001

Manufacturing Supplier

Tel: 0086-574-87732891


CNC Precision Turned Auto Parts by China Supplier And Factory

You can choose a wide selection of metal surface finishing services after machining at ACE BEST CNC machining manufacturer to improve the parts appearance, surface smoothness, corrosion resistance and other performance of your CNC machined parts.

Product Description

Painting: refers to an altering surface finishing process, spraying paint, pigment, or color to a solid surface as a colored protective layer, and can be done on metal or non-metal CNC machined components of any shapes, usually applied on aluminum, stainless steel and steel alloy parts. The purpose is to improve aesthetic appearance and prevent corrosion or oxidation.

Passivation: a common chemical surface treatment method for steel and stainless steel, to remove ferrous contaminants or use a light coat of protective material to create a shell for enhancing the corrosion resistance or reducing the chemical reactivity.

Electroplating/Plating: a process of using an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode, to change the properties of the metal surface or build up thickness for undersized parts.

Powder coating/Powder coat: a functional and decorative finish, which is applied as a free-flowing, dry powder, employs electrostatically and then cured under heat, to create a hard finish that is tougher than conventional paint. The main applications including household appliances, aluminum extrusions, drum hardware, automobile, motorcycle, and bicycle parts.

Anodizing/Anodized: an electrolytic passivation process of forming a thin layer of aluminum oxide on the exterior of aluminum CNC machining parts to increase the thickness of the natural oxide layer and protect the metal, as the layer has higher corrosion and abrasion resistance than aluminum.

Polishing: also known as buffing, a process of rubbing the surface of parts or utilizing a chemical action to produce a smooth and shiny surface, make the surface get significant specular reflection or reduce diffuse reflection in some materials.

Black oxide: also known as blackening, gun bluing or hot blackening, a chemical process of forming a black conversion coating on stainless steel, copper and copper based alloys, zinc, powdered metals, silver solder, and ferrous materials, to improve corrosion resistance and minimize light reflection.

Conversion coating: also known as chromate conversion, the coating are used for metals converted to a protective layer through the chemical or electrochemical processes, primarily used as a corrosion inhibitor, decorative finish, or to retain electrical conductivity.

Bead blasting/Bead blast: the process of removing surface deposits by applying fine glass beads at a high pressure without damaging the surface.

Abrasive blasting/sandblasting: the process or operation of propelling a stream of abrasive material composed of high-velocity sand-sizes particles against the metal surface under high pressure with blast equipment like air pressure system, to remove surface contaminants, clean metals or increase a texture, then change the smoothness or roughness of surface.

Part Name:CNC Precision Turned Auto Part of Supplier by China

Material Aluminum: 6061-T6 / 7075 / 6082 / 6063 / 5052…

Stainless Steel: SS303 / SS304 / SS316 / SS430 / SS301…

Carbon Steel: C20 / Q235 / C45 / 20Mn / 42CrMo / 20CrNiMo

Plastic: Nylon / POM

Brass: T2 / T1 / Hpb59 / C36000 / C268000 / C37700 / C385000 / C2200 / C28000…

Tolerance as drawing
Surface Finish Rumbling; anti-rusted oiled; zinc plating;  Anodized; Sand/Shot blasting; Chrome plating; Heat treatment; Polish; Phosphating; Electropolishing; Powder Coating
Processing CNC Machining; CNC turning; CNC milling; Machine Center; Grinding; de-burring; drilling; forging; investment casting; Die casting; Assembly
Size Customized
Sample Time 7days
Delivery Time 35days after payment.
Trade Term EXW; FOB; CIF; DDU; DDP…
Trade Mark OEM
Transport Package Carton and Wooden Case, Safety Export Package
Specification Customized
Origin Ningbo
Validity of quotation 30days



If you would like to have a question then get in touch today, we are ready to assist 24/7.
We welcome your cooperation and we will develop with you.
 Factory-direct Connectivity Solutions.
 High quality, Competitive Price.
 Custom-tailored solutions.
 Problem-solving approach.


If you would like to have a question then get in touch today, we are ready to assist 24/7.
We welcome your cooperation and we will develop with you.

 Factory-direct Connectivity Solutions.
 High quality, Competitive Price.
 Custom-tailored solutions.
 Problem-solving approach.