01Cold forming · Threading
Engineering-led · Custom-made · Wenzhou, China
From non-standard screws to precision mechanical components, we combine hands-on tooling expertise with a dependable regional manufacturing network.


02 / 06Small enough to respond quickly.
Experienced enough to solve problems.
01 — What we make
We support made-to-drawing parts across forming, stamping, machining and assembly. Each project is matched to a practical production route based on geometry, material, quantity and application.
01Cold forming · Threading
02Pins · Rivets · Locators
03Clips · Rings · Washers
04Turning · Precision parts
05Stamping · Forming
06Custom parts · Assembly
Representative products shown through Chengyi's regional manufacturing capability. Final specifications are confirmed per project.
02 — Custom development
Custom parts rarely begin with a catalogue number. They begin with a function, a drawing, a worn sample or a production problem. Our technical management stays close to tooling and sampling so decisions remain practical.
Send a drawing, sample, photo or key dimensions together with quantity and application.
We review structure, tooling, process options and the practical route to production.
Prototype or sample parts are prepared for dimensional and functional confirmation.
After approval, we coordinate production, inspection, packing and delivery.

Good manufacturing starts with understanding how the part works—not only what it looks like.
What helps us quote accurately
03 — How we work
Chengyi combines hands-on technical management with a dependable circle of specialist manufacturers in Wenzhou and Rui'an. Work may be produced by our team or coordinated with a suitable manufacturing partner; Chengyi remains the responsive customer-facing contact throughout the project.
Decisions stay close to the people who understand tooling and production.
Each part is matched to the process and production resource it actually needs.
Customers receive a single point of contact from clarification through delivery.
Supporting components for
04 — About Chengyi
Wenzhou Chengyi Fasteners Co., Ltd. is a focused manufacturing company for customers who need more than an off-the-shelf part.
Our technical lead brings practical experience in mould and tooling development and is personally involved in feasibility, sampling and production decisions. We believe responsible workmanship, useful communication and steady follow-through matter more than impressive claims.
Start a project
Share what you have. We will review the requirement and respond with the questions needed to move forward.
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