Forming
Tube Bending
Tube bending support for formed tubular components and assemblies.
LIWAN manufacturing
Precision Tubular Components & Welded Assemblies
From drawing review and prototyping to controlled production, Ningbo Liwan Tubular Components supports tube bending, laser cutting, welding, and fabrication for OEM manufacturing programs.
Manufacturing foundation
Factory Facts
A focused tubular component and welded assembly manufacturing facility.
- Established
- 2006
- Manufacturing Facility
- 4,500 m²
- Employees
- 50+
- Production Machines
- 30+
- Quality Management
- ISO 9001:2015
What we manufacture
Representative Products
Representative OEM components manufactured by LIWAN. Customer-specific designs are shown only where permitted.
Representative product Automotive Fluid Tube Assembly
A formed and welded tube assembly with production-ready end forms and mounting features.
Representative product DEF & Emissions Tube Assembly
A routed tube assembly combining bends, formed ends, welded joints, and bracket integration.
Representative product Fabricated Exhaust Component
A fabricated stainless component with welded branch, sensor, and connection features.
Representative product Multi-Tube Welded Assembly
A compact welded tube assembly with multiple routes, formed ends, and mounting points.
How we manufacture
Core Manufacturing Capabilities
Connected production processes for tubular components and welded assemblies.
Welding
TIG / MIG Welding
TIG and MIG welding support for fabricated tubular assemblies.
Completion
Assembly & Testing
Assembly and inspection support for finished tubular component programs.
Quality
Quality Built Into Production
Quality planning and inspection are built into Liwan's manufacturing workflow.
ISO 9001:2015
Liwan's stated quality management certification.
Incoming inspection
Inspect incoming materials as part of production control.
First-article inspection
Use first-article inspection in the production launch process.
In-process inspection
Carry inspection through defined manufacturing stages.
Final inspection
Complete final inspection before production release.
Calibration and traceability
Support calibration, fixtures, and traceability within process control.
Engineering
From Drawing to Stable Production
Liwan connects early engineering review with process planning and production launch.
- Drawing Review
- DFM
- Tooling
- Prototype
- FAI
- Mass Production
Applications
Industries and Applications
Liwan supports drawing-led tubular component programs for automotive, simulator, off-highway, industrial HVAC, and other OEM equipment applications.
Automotive intake and fluid tubes
Formed tubular components for air intake, cooling, and other under-hood routing applications.
Driving & Motion Simulators
Bent and welded tubular frames for racing, driving, and motion-simulator platforms.
Commercial vehicle and off-highway equipment
Bent fluid, cooling, and structural tube applications for rugged equipment programs.
Industrial HVAC and refrigeration
Formed tubes and welded assemblies for compressors, heat exchangers, and industrial climate equipment.
Custom OEM tubular assemblies
Drawing-led bent and welded tube assemblies for other industrial equipment applications.
Factory
Inside Our Factory
Liwan's factory workflow links equipment management, process control, and people development.
Equipment management
Manage production equipment as part of the factory workflow.
Maintenance and calibration
Include maintenance and calibration in factory process control.
Training
Support production work with employee training.
Document control
Use controlled documents to support defined manufacturing processes.
Material identification and traceability
Maintain material identification and traceability in production.
5S
Use 5S as part of shopfloor management.
Start a project
Bring Your Drawing Into Production
Send your drawing for manufacturability feedback and a quotation conversation with the Liwan manufacturing team.
Send Your Drawing