Your Manufacturing Partner in China

A DIRECT MANUFACTURING PARTNER

Your Manufacturing Partner in China

Outsourcing custom parts should not mean losing control over quality, communication, or delivery expectations.

We work with your team to understand part geometry, material specifications, critical dimensions, surface finish, and production requirements before manufacturing begins. We’ll discuss what can be produced, what needs engineering review, and what information is required to move forward.

Engineering-led review

Engineering-led review

We assess your drawings and identify manufacturing considerations.

custom manufacturing in China

Multiple processes

We help evaluate machining, molding, casting, fabrication, and additive manufacturing.

Direct factory communication

Direct factory communication

Discuss requirements with our team—not just a catalogue listing.

Prototype to production

Prototype to production

Plan your next stage with process and quantity requirements in view.

Our Manufacturing Capabilities

We help you evaluate the appropriate process based on part geometry, materials, tolerances, quantities, and production economics.

CNC Machining

CNC Machining

Precision metal and plastic components produced through CNC milling and turning, including suitable Swiss-Type CNC, 5-Axis, multi-axis, and mill-turn work.

Suitable for: Housings, brackets, shafts, fixtures, and precision components.

Request a CNC quote →
Injection Molding

Injection Molding

Custom plastic components with tooling development and repeat-production requirements considered early.

Suitable for: Enclosures, covers, connectors, and housings.

Discuss your molding project →
Sheet Metal Fabrication

Sheet Metal Fabrication

Custom sheet metal parts built around your material, thickness, geometry, and finish requirements.

Suitable for: Chassis, panels, brackets, and enclosures.

Request a sheet metal quote →
Vacuum Casting

Vacuum Casting

Prototype and low-volume cast parts for design evaluation and selected material requirements.

Suitable for: Design validation, appearance models, and low-volume parts.

Discuss your prototype →
Die Casting

Die Casting

Custom die-cast components where geometry, alloy, tooling investment, and volume support the process.

Suitable for: Metal housings and repeat-production components.

Request a die casting review →
Additive Manufacturing

Additive Manufacturing

Custom parts for rapid iterations, complex geometry, and selected prototype or end-use applications.

Suitable for: Design iterations and complex geometries.

Discuss your part design →

QUALITY AND MANUFACTURING CONFIDENCE

Quality, Certifications, and Manufacturing Confidence

Send Drawings and Quality Requirements

When you source parts internationally, you need more than a competitive quote. We want you to understand the applicable quality requirements, inspection scope, and documentation before the project proceeds.

Tell us which standards, inspection criteria, material records, or traceability requirements apply to your project. We’ll review them against the agreed scope.

IATF 16949:2016

IATF 16949:2016

ISO 14001

ISO 14001

ISO 27001

ISO 27001

ISO 13485:2016

ISO 13485:2016

ISO 45001

ISO 45001

ISO 9001:2015

ISO 9001:2015

CUSTOMER EXPERIENCE

What Our Customers Say

We value long-term manufacturing relationships built on clear requirements, practical communication, and agreed project expectations.

customers avatar
John Carter
Mechanical Engineer, Industrial Equipment
star

“What impresses us most is their deep manufacturing know-how. Their team doesn’t just make parts; they think through manufacturability challenges in advance. Parts arrive as expected and pass our first inspection smoothly.”

customers avatar
Mark Bennett
R&D Engineer, Aerospace Component Supplier
star

“Few suppliers can handle our custom low-volume tooling requests with this level of dedication. They communicated clearly throughout the whole project and treated our small-batch order with the same care as large production runs.”

customers avatar
Mechanical Engineer
Medical Device Startup
star

“We’ve worked with many machining vendors, but few match their quality consistency. Even for our complex, tight-tolerance custom prototypes, inspection reports are thorough and turnaround is far quicker than competitors. A reliable partner we keep going back to.”

customers avatar
Design Engineer
Consumer Hardware Brand
star

“We engaged them to refine our injection mold tooling for a new consumer product. Their tooling expertise helped us cut cycle time and reduce part defects significantly. The support continues long after the first production run.”

How We Move Your Project Forward

FROM DRAWING TO DELIVERY

Send Your Drawings

Send Your Drawings

Upload CAD files and drawings with material, quantity, tolerance, and finish details where available.

We Review Requirements

We Review Requirements

We review the information and identify manufacturing questions or details needing clarification.

Discuss Process & Quote

Discuss Process & Quote

We evaluate a suitable process and prepare a quote based on the available specifications.

Confirm Production Details

Confirm Production Details

We align on drawings, materials, inspection criteria, delivery terms, and the agreed scope.

Manufacture & Deliver

Manufacture & Deliver

We manufacture according to the approved requirements and agreed quality arrangements.

FROM DRAWING TO DELIVERY

Built for Engineering and Procurement Teams

We work with customers who need custom components and clear engineering specifications.

Aerospace
Aerospace

Aerospace

Custom components with defined material and inspection requirements.

Medical Devices
Medical Devices

Medical Devices

Projects with specific material, documentation, and quality-system requirements.

Robotics & Automation
Robotics & Automation

Robotics & Automation

Precision mounts, brackets, shafts, housings, and custom assemblies.

Semiconductor Equipment
Semiconductor Equipment

Semiconductor Equipment

Custom mechanical components for specialized equipment.

Automotive & EV
Automotive & EV

Automotive & EV

Custom metal and plastic parts for prototypes and production programs.

PROJECT QUESTIONS

Frequently Asked Questions

What files should I send for a manufacturing quote?

Send 3D CAD files and, where available, 2D drawings. Include material, critical tolerances, surface finish, quantity, and inspection requirements.

Can HLH Industry support prototypes and mass production?

We support projects from prototypes and low-volume runs to larger production quantities. The suitable process depends on design, material, volume, tooling, and quality requirements.

How do you help reduce the risks of manufacturing in China?

We start by reviewing specifications, clarifying requirements, and agreeing on the manufacturing and quality scope. Confirm acceptance criteria, documentation, and delivery terms before ordering.

Can you provide inspection reports and material documentation?

Specify the documentation you need in your RFQ. We will review it against the process and agreed scope and confirm what can be provided before order acceptance.

Do you hold certifications for regulated industries?

Tell us which standard or customer-specific requirement applies. We can discuss relevant current credentials and their scope.

Can you quote without CAD drawings?

We can discuss early-stage projects from available sketches or specifications, but a reliable quote usually requires sufficient geometry, material, tolerance, finish, and quantity information.

Do you sell standard catalogue products?

Our focus is custom manufacturing to customer drawings and specifications, not catalogue products. Send us your component design or defined engineering requirements.

LET’S REVIEW YOUR PROJECT

Have a Part to Manufacture?

Send us your drawings and requirements. Tell us what the part needs to do, your material and finish requirements, and the quantity you need. We’ll review the information and discuss the next steps.

quote

2D drawings and 3D CAD files

quote

Material, tolerances, and finish

quote

Prototype quantity or production volume

quote

Target delivery date and quality requirements

Have a Part to Manufacture?

Send Your RFQ

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