CNC & Welding Profile Hub
CNC machined and welded aluminum profile routes for project RFQs
When your drawing needs extrusion, cutting, drilling, welding, machining, assembly or inspection support, Conglin helps you choose the right profile route for railway, container, shipbuilding and automotive structures.

Choose the right project path
Route your CNC machining and welding profile inquiry by application
Your drawing may look like a profile, a welded frame, a machined part or a vehicle structure. Use the paths below to reach the solution Conglin should review first.

Railway welded profiles
Railway Aluminum Profiles
For railway profiles, welded structures, conductive rails, brackets and spare parts where your drawing needs welding proof, machining control and project documentation.

Logistics body profiles
Container & Cargo Box Extrusions
For aluminum cargo box, van body, trailer and container-profile projects that need cut length, welding, punching, assembly and packing coordination.

Marine welding route
Shipbuilding & Marine Workboats
For hull sections, workboat parts and marine aluminum structures where welding sequence, alloy selection and inspection documents need early review.

Automotive profile machining
Vehicle Body Frame Profiles
For vehicle frame profiles and lightweight structural parts where CNC holes, slots, welded joints, tolerance planning and fixture needs must be clear.
Drawing-first engineering review
Send the profile geometry before you decide the machining and welding route
CNC features, welding sequence, material temper, extrusion tolerance and packing method can change the quotation. Conglin reviews your drawing as a complete production route, not only a material list.
RFQ information checklist
Give your team a faster way to get a workable quote
The more complete your starting information is, the faster Conglin can confirm feasibility, cost drivers, lead time and document support.
Project case directions
Use real application context to improve your machining and welding quote
Share the end use with your drawing so Conglin can check whether CNC features, welded joints, alloy choice and inspection documents match the application.

Railway aluminum assemblies
Send profile drawings, welding standard, drilling pattern and approval documents so Conglin can reOpen solution → and proof needs before quotation.

Cargo box and van body structures
For logistics bodies, share section drawing, cut length, connection detail, surface requirement and packing method for export review.

Marine welded aluminum structures
For workboats and marine equipment, tell us alloy, plate/profile combination, welding route, inspection requirement and corrosion environment.

Automotive lightweight frame parts
For body frame profiles and machined components, confirm tolerance, CNC feature location, joining method, fixture needs and batch quantity.
Manufacturing facilities reference
Connect CNC, welding and aluminum profile production in one review
Conglin manufacturing facilities support extrusion, mold development, machining, welding, assembly and inspection. Use the facility reference when your team needs proof of production control.

Welding and fabrication capacity
Plan welded joints, large assemblies, friction-stir or automated welding routes and related visual or dimensional checks.

Manufacturing facilities reference
Use Conglin manufacturing capability as the factory proof layer when your RFQ needs extrusion, casting, machining, assembly and export support.
Certification & Quality Systems
Use Conglin quality proof for supplier approval
Your team can review lab proof, certificates and project qualification evidence together before moving from drawing review to production.
Quality proof before your order
Conglin supports international procurement teams with quality-system certificates, welding qualifications, inspection records and export-ready documents. The goal is simple: help your engineering, purchasing and compliance teams reduce supplier risk before production starts.

Recognized systems for supplier approval
When you compare suppliers, certificates help confirm whether a factory can support controlled production, documented welding, inspection and shipment paperwork. Conglin prepares these documents so your RFQ review is faster and more transparent.
Quality Management
Process control for order review, production, inspection, documentation and continuous improvement
Check itEnvironmental Management
Responsible manufacturing practices and controlled workshop operations
Check itHealth & Safety
Safety-management support for stable, controlled production environments
Check itWelding Quality
Welding quality requirements and process documentation for structural projects
Check itRailway Welding
European welding qualification support for rail transit vehicles and components
Check itRailway Quality
Railway industry quality management support for transportation-related supply
Check itAutomotive Quality
Automotive-related supplier qualification support for component projects
Check itMarine Support
Classification document support for marine, shipbuilding and export projects
Check itCNAS lab proof for faster approval
Conglin backs project quotations with visible laboratory capability, accreditation proof and inspection records. Your procurement and engineering teams can review quality evidence before confirming production or shipment.

CNAS approved laboratory capability
Clear CNAS-focused proof gives your purchasing, engineering and compliance teams more confidence when they evaluate Conglin as a qualified supplier.


Laboratory Scene
In-house lab environment for material verification

Mechanical Testing
Property checks for your project requirements

Materials Review
Sample review and technical record support

Quality Check
Routine verification before documentation release
How CNAS lab evidence supports your order
RFQ to shipmentConfirm Project Needs
Review your drawing, material choice and approval needs before quotation
Check Materials
Use lab capability to support composition, structure and property verification
Prepare Records
Organize quality documents your team can review before approval
Support Shipment
Provide inspection evidence before packing, loading and export delivery
More than certificates
The value is not a certificate logo alone. You need faster supplier approval, clearer quality responsibility and lower risk when the order moves from drawing to shipment.
RFQ Document Support
Share your standard, drawing, end use and destination market. Conglin helps match the relevant certificates and quality files
Inspection Records
Inspection reports, material documents and traceability records can support your approval and shipment review
Approval paperwork
Documentation is organized for your procurement, engineering and compliance teams when you need clear evidence before approval
Use quality proof to speed up supplier approval
Send your RFQ, required standard and project background. Conglin will help prepare the certification and quality documents your team needs for approval.
Longkou Conglin Aluminium Material Limited Company
Longkou, Yantai, Shandong, China. Use this location for supplier registration, factory review and logistics planning.
Upload Your CNC Machining and Welding Drawing
Send the drawing revision and specify aluminum alloy, temper, starting profile or stock, CNC features and tolerances, welding joint and standard, heat treatment, surface finish, inspection criteria, quantity, application and destination.