Custom Metal & Plastic Parts Manufacturer Since 2002

  • Free instant quote for CNC machined parts in 24h.
  • China manufactuer direct–Competitive price / as fast as 1-3 days lead-time.

Our Services

SWISS CNC Machining

SWISS CNC Machining Service

High precision Complex parts CNC large batch Rapid Machining with incredible accuracy, efficiency and cheap price.
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CNC Turning

CNC Turning Service

Can quickly CNC Turned Parts more than 50 materials, metals and plastics such as aluminum, copper, zinc, magnesium, etc., whether it is large or small parts.
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CNC Milling

CNC Milling Service

With 3, 4, 5 axis milling equipment to manufacturing various complex parts,  can quickly drill, engrave, and mill any prototype you want.
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CNC Machining Service

CNC Machining Service

3-axis,4-axis,5-axis CNC machining equipment with advanced cnc turning / milling / casting process helps you to achieve from design to machined parts online.
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Die Casting Service

Die Casting Service

Die casting is the process of choice when producing high volumes of complex metal parts.Cheap price.
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Company headquarters building

About US

Shenzhen Best Parts Co., Ltd

—-We are leading company in Online CNC machining on demand, We provide specific solutions for our every customers.

Shenzhen Best Parts Co., Ltd is a professional online CNC machining service company in China. Founded in 2002. Our plant area has already exceeded 6000㎡. We Started as a prototype manufactuer in the year of 2002 after integrating foundation resource. With the capabilities of CNC Machining, CNC turning, CNC milling, SWISS CNC precision machining, Die casting, Finishing and assembly etc.. Best parts provides online one-stop service from parts design,instant quote to rapid prototyping…

Why you can trust BEST Parts to manufacturing?

Quality Assurance: We strictly implement ISO quality standards and have received ISO 9001: 2015 certification. This means our production lines feature advanced technologies that give manufacturing precision and accuracy. With sophisticated measuring and testing equipment in house, we check all incoming material and parts to meet your specifications. That’s why we are outstanding among the rapid prototyping companies in China. Learn more about our quality control system. What’s more:

Instant CNC Quoting Online

Generally, quotations will be delivered in 24 hours after submitting RFQs with clear information.

Factory Direct Machining Capabilities

Our in-house facilities allow us to quickly complete your project. Since we have multiple CNC turning, milling and die-casting equipment.

Fast Turnaround

Own equipment, unlimited capacity, experienced engineers and flexible production systems allow us to create your prototypes and production parts in no time.

20+ Years in Parts Manufacturing Online

Having carried out rapid prototyping and custom parts machining online for 20 years, our engineers have built up rich experience. We can handle all types of projects.

10000+ Projects Delivered

Over 10K projects have been sent to our customers worldwide in the past 20 years, and we have received countless positive comments.

2000+ Happy Customers

Our goal is to keep every customer happy with reliable quality, fast turnaround and great services. We want all our new customers to become long-term customers.

We’re Your Partner From Prototyping to Production and Beyond

Best parts offer a range of solutions to help you develop effective prototypes and scale up to production parts. Make custom parts on-demand using over 50 materials and 10 processes. Put our network of over 1,000 highly vetted manufacturers and our skilled applications engineering team to work for you.

Available Surface Finishes On-demand

We can do surface treatment according to customer needs, the processing methods are as follows:

  • Anodized
  • Polishing
  • Nickel plating
  • Zinc plating
  • Brushing
  • Laser engraving
  • Oxide black
  • Heat treatment
  • Sandblasting
  • Electrophoresis etc.
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CNC Machining Equipments and Tools

Best Parts  equiped tools and equipments such as:

  • 20 CNC Lathes
  • 16 CNC Milling machines
  • 8 CNC Machining Machines(3-axis, 4-axis, 5-axis)
  • 18 SWISS CNC Machines
  • 30 Die Casting Machines
  • 2 Laser engraving machine


  • 3D measurement
  • Hardness Tester
  • Altimeter
  • spectrum analyzer
  • Surface Roughness Tester
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Material You Can Choose for Your CNC Machined Parts

Best Parts uses a wide range of material selections for our Custom parts manufacturing. Among our materials are aluminum, stainless steel, brass, magnesium, copper, carbon steel, bronze, galvanized steel, and more. Each material is available in different grades and varieties. Rest assured that all the materials used for your wanted parts are durable, corrosion-resistant, long-lasting, rust-proof, wear-resistant, and high-performance. If you want a specific material to be used in the metal parts machining, don’t hesitate to contact us!

  • Aluminum
  • Brass
  • Copper
  • Stainless Steel
  • Steel Alloy
  • Steel Mild Low Carbon
  • Titanium
  • Plastic

How to Work With Us?

1 Upload a CAD File

To start, simply select a manufacturing process and upload a 3D CAD file.

2 Analysis and Online Quote

We’ll send you design for manufacturability (DFM) analysis and real-time pricing in 24 hours.

3 Parts Manufacturing

Once you review your quote and place your order, we’ll start the parts manufacturing process.

4 Parts are Shipped!

Our digital manufacturing process allows us to produce parts in as fast as 1 day.

Trusted by

With 2000+ partners around the world, Best Parts is supported and recognized by many internationally renowned brand companies.

Customer Testimonials


Nick Nafsinger

United States
The BEST Parts team is excellent to work with. They are very responsive and the quality of the parts we ordered is exceptional. We've been doing business with them for several years now and look forward to continue working with them.

Darrell Harris

United States
Very satisfied, the tolerance is very well grasped, I look forward to the next cooperation


Product is of good quality. Supplier provided QC report and photos before shipping. They were attentive not only before I finalized my order, but afterwards as well. My order arrived early and was of exceptional quality and packaging- A++++ reccomend!

Custom Parts or Prototype Manufacturing, Start to Get Free Quote for 1-10000 PCS.