Shape Idea Into Reality
From Prototype to Production
Partner with Deuchi.
Deuchi Is More Than A Supplier
We’re Your Trusted Manufacturing Partner.
With deep expertise in custom injection molding and tooling, we help global brands bring innovative plastic products from concept to reality.Our experienced team works closely with you at every stage of the project — from initial design support and mold development through production, secondary operations, and final delivery — to ensure precision, consistent quality, and reliable lead times.
Contract Manufacturing
The custom plastic parts you need — designed, tooled, and manufactured to your exact requirements. Experience makes the difference.

Engineering Services
Mold Build
Professional precision mold build for injection molding, ensuring high accuracy and long service life.
Learn about mold build
Prototyping
Fast and reliable prototyping via 3D printing, CNC and vacuum casting for product validation.
View prototyping services
Material Selection
Professional guidance on ABS, POM, PC, PP and other engineering plastics for best performance.
See material selection guide
DFM
Design for Manufacturing analysis to optimize structure, reduce cost and improve production stability.
Read our DFM review process
Our Application
Electrical Enclosures & Power Electronics
Inverter & switch enclosures for industrial control systems.
IP protection, heat dissipation, EMI shielding and flame retardant.
IP protection, heat dissipation, EMI shielding and flame retardant.
Industrial HMI & Operator Controls
Joysticks & buttons for machinery and remote controls.
Ergonomic, waterproof, durable and long service life.
Ergonomic, waterproof, durable and long service life.
Precision Mechanical Transmission Parts
High-precision gears for reducers and actuators.
Smooth running, low noise, high accuracy and self-lubricating.
Smooth running, low noise, high accuracy and self-lubricating.
Robotics & Intelligent Equipment
Protective enclosures for robot arms and intelligent devices.
Lightweight, strong structure, modular and good surface finish.
Lightweight, strong structure, modular and good surface finish.
Resources
BLOG & NEW

Injection Mold Cost Breakdown in China
July 9, 2026
Published by Deuchi Plastic Engineering Team · Mold Build ·

How to Transfer an Injection Mold to a New Supplier
July 9, 2026
Published by Deuchi Plastic Engineering Team · Mold Build ·

Injection Mold Maintenance: OEM Contract Guide
July 9, 2026
Published by Deuchi Plastic Engineering Team · Mold Build ·