Prototyping & Manufacturing
Expert Custom Manufacturers
at Your Service, Anytime
Upload Design - Submit your idea with drawing, desired quantities batch about your project.
Engineering DFM Review - A detailed quotation or optimal solution for sample, production, lead time and freight.
Confirm Quote - Your order starts with engineering quality control during manufacturing procedure until completes.
100% Service Support - Bulk and customized small packaging, FOB, CIF, DDU and DDP. We help you find the best solution for all your concerns.









Who we are
Your B2B partner for outstanding custom parts and products.
First-class quality and service readiness in focus!
SUMONESTOP offers an extensive array of custom product portfolio in metal, plastic, wood materials and is characterized by reliable process technologies, by one-stop manufacturing service from scratch to full assembly fast ready to ship anywhere in China.
- Rapid Prototyping
- Rapid & Production Tooling
- Low & High Volume Production
- Metal/Plastic Injection Molding
- CNC Machining
- Sheet Metal Fabrication
- Surface Finishing & Assembly
- Quality Assurance
- (+86) 132-6558-3397
One-Stop Manufacturing Services

Years of Experience
Your reliable B2B manufacturer, specialized in the production of high-quality products.
We offer you comprehensive support from A to Z! Our workforce is highly skilled and trained to be cost and schedule conscious, aim to make custom products in China efficient and easy.
What we offer
We are happy to offer suggestions to streamline the process while staying within budget.

Largest OEM service in China standing behind background of world branding clienteles in Mechanical Parts, Aerospace and Drone field, Medical Devices and Electrical Appliance.

We leverage advanced 3/4/5-axis CNC machines to make in a range of small precise workpieces and heavy big industrial parts with various complex geometries and tight tolerances.

Custom process includes cutting, bending, stamping, welding and forming, from sample assembly test until mass production.

We offer optimal solution per your intended volume and budget. Learn more about different cost of molds in small-batch and mass production.

Pressure Die Casting, Precision Wax Lost and Vacuum casting help your product development needs whether in Metal or Plastic materials.

We make products better by applying a variety of treatments to improve their appearance, performance and durability. Like Polishing, Anodizing, PVD…
Why Choose Us
Our workforce is highly skilled and trained to be cost and schedule conscious.
Quality Assurance
From meticulous material selection to rigorous in-process inspections and final product delivery, we ensure every aspect meets your predefined standards.
Engineering Support
We are the team with rich experiences in
multi-specialty fabrication over 15 years, offering verified manufacturers and specialized factories.
From design, DFM real-time, Prototyping, Tooling fabrication, Multiple manufacturing, Assembly, Quality Assurance and Logistics.
Bulk and customized small packaging, FOB, CIF, DDU and DDP. We help you find the best solution for all your concerns.
Tailored Manufacturing Services to Meet Your Needs.
With a wide range of in-house manufacturing capabilities and engineering expertise, we’re confident we can support you in making your next product idea a reality!
We start with the customer! We communicate with key points: Where is their pain? Where are they going? How can we help them win?
Combining different production methods in One-stop manufacturing offers significant cost advantages.

