Core Capability
Custom Copper Busbars
We manufacture high-performance copper busbars designed for maximum electrical conductivity and thermal management. Suitable for NEVs, power distribution, and industrial switchgears.


Precision Forming
Deep Drawn Components
Our advanced deep drawing process produces seamless, complex metal shapes with exceptional structural integrity. We deliver high-volume, tight-tolerance parts for demanding industries.
In-House Tooling
Stamping Die Customization
The foundation of excellent hardware is an excellent mold. Our expert engineers design and fabricate high-precision stamping dies to ensure perfect repeatability for your mass production needs.


Precision Machining
Tooling & Mold Components
Beyond complete dies, we supply standard and highly customized non-standard mold components. We provide the critical replacement parts that keep your stamping operations running smoothly.
From Engineering Concept to Finished Component
Our streamlined process from concept to delivery ensures quality at every step.
01 — Engineering & Quotation
Review drawings, specifications, materials, and production requirements to develop the right manufacturing approach and competitive quotation.
02 — Tooling & Prototype
Design and manufacture precision tooling in-house, followed by prototype development and testing to validate the production process.
03 — Precision Production
Move into efficient mass production using advanced stamping, deep drawing, CNC machining, and copper busbar processing.
04 — Quality Control & Delivery
Conduct rigorous inspections at every stage before final packaging and reliable shipment to customers worldwide.
Ready to Start Your Project?
Send us your CAD drawings, requirements, or concepts. JUMAI’s engineering team will review your project and provide a professional manufacturing analysis and preliminary quote within 24 hours.