Engineering & Sample Development
Build it. Test it. Make it better.
Most appliance problems do not start in production. They start when a sample is approved on assumptions instead of test data.
A disciplined path to production
A sample is not the finish line. It is a decision point.
At Wing, every program follows the same clear development path. Each build has a job to do, each test produces evidence, and each revision moves the product closer to a reliable production standard.
Five controlled stages
From first build to production release
One shared sequence keeps engineering, quality, sourcing, and production aligned on what is being approved—and why.
- T1
Prove the core function
The first working build establishes that the product concept can perform its essential job.
- T2
Refine and retest
Performance, controls, safety, and usability are improved, then checked again.
- PP
Pre-production
A production-intent sample validates tooling, assembly, and process assumptions.
- GS
Golden Sample
The approved master reference becomes the shared standard for the finished product.
- MP
Production release
Mass production begins with output checked against the approved specification.
On the Wing factory floor
Where the process happens
Real photos from our facility in Ningbo, from tooling through the final run test.
ToolingMolds and dies are machined and adjusted in the tool room before parts are approved. 
BuildWiring, motor, and control board are fitted and checked on the build line. 
Electrical safetyUnits are checked on an electrical safety tester before they move on. 
Run testAir fryers are powered and run at test stations, with readings logged for each unit.
Test before you scale
Decisions backed by data
Testing happens throughout development—not just at the end. Wing checks the behaviors that shape product performance and customer experience, while running safety reviews early enough to improve the design before formal certification.
More than a sample
The product and the record behind it
A physical sample only tells part of the story. The supporting documentation gives every team the same reference for what to buy, build, test, and control.
- Bill of materials
- Assembly drawings
- Test specifications
- Process parameters
- Full revision records
- Approved master reference
The result