Concept Through Production

Rapid Prototyping Services

We are a prototyping company that prides ourselves on producing the finest quality with on-time deliveries. Click below for a better understanding of our services and quality of work.


Develop 3D part files with our tool and design capabilities.

3D Printing

Transform your 3D file into a physical part with incredibly accurate detail.

Urethane Casting

Short run of prototype or production parts.

CNC Machining

Milling & turning of various metals & plastics.

Aluminum - Steel Tooling

Fast turnaround, high quality mold making done at competitive pricing.

Injection Molding

Prototype & production runs with no minimum order.


Various services including: assembly, painting, powder coating, polishing, etc.


Ston-Engineering has been in business since 2012. We are a nationally known, full-service prototyping company with production capabilities with customers all over the China. Located in Shenzhen Guangdong, Ston-Engineering has become the recognized name for high-quality parts and superior customer service.


Ston-Engineering welcomes projects at any stage from design, concept validation, short-run prototype, and production. Our project managers take the time to understand the full scope of the project, and by offering multiple services we have the ability to choose the best-suited path for that particular job.

At Ston-Engineering, we pride ourselves on delivering the best service possible by putting your needs first. Our numerous services allow our team to delegate your project correctly, so you get your project done right the first time in an efficient manner. Hear from actual customers about why we are the preferred prototyping partner.

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