
Service Process
All-inclusive Customized Service
At Han Chang, we provide a transparent and efficient collaboration process, guiding clients from request to mass production. Our service process includes request review, quotation, sampling, tooling, mass production, and final quality control & delivery.
We have professional staff fluent in Chinese, English, and Japanese, ensuring smooth communication with global clients. With expertise in CNC machining, aluminum extrusion components, and OEM/ODM customization, we guarantee efficient service, on-time delivery, and consistent quality.

Our team establishing the best services and creating the best products.
1. Understanding Client Needs: Gain a clear understanding of the customer’s product specifications and functional requirements.
2. Drawing Review: Conduct feasibility evaluation and manufacturing process analysis.
3. Proposal & Quotation: Provide a fast and feasible production proposal with pricing after technical evaluation.
4. Prototype Manufacturing: Start trial production based on the planned process and establish preliminary workflows.
5. Prototype Approval: Confirm quality standards with the client and define inspection criteria and critical points.
6. Tooling & Mold Fabrication: Manufacture or modify molds based on approved samples and customer requirements.
7. Order Confirmation: Verify order quantity and pricing before scheduling for production.
8. Mass Production: Launch full-scale production according to standardized manufacturing procedures to ensure consistent quality.
9. Quality Inspection: Implement thorough quality checks—incoming inspection, first article inspection, in-process checks, and final inspection.
10. Product Delivery: Use proper packaging to ensure goods are shipped securely and delivered on time.