DNL - Laser Cutting, Forging, Pressing, Machining, Welding, Heat Treatment

Our Core Strengths

QUALITY

Core competitiveness through rigorous standards, advanced inspection systems, and continuous improvement in every production phase.

AUTOMATION

Efficient and reliable manufacturing powered by robotic welding, CNC machining, and intelligent production lines.

FLEXIBILITY

Custom OEM and ODM solutions tailored to your specifications with agile production and rapid prototyping.

Who Are We?

Qingdao Donglu Technology Co., Ltd. is a professional factory established in 2002, specializing in the production of hardware and mechanical parts. For over 20 years, we have been utilizing advanced technology and equipment from both domestic and international sources to deliver precision-engineered components.

Our expertise spans laser cutting, forging, pressing, machining, welding, and heat treatment processes, enabling us to serve diverse industries including construction, agriculture, and transportation.

20+ Years of Manufacturing Experience
ISO-Certified Quality Management
Global Export to 30+ Countries
In-House R&D and Engineering Team

Our Products

Trailer Parts

Support parts and fittings for heavy-duty trailers, including brackets, hitches, and suspension components.

Agricultural Parts

Loader tines, jacks, trailer components, and other equipment essential for farming and agricultural machinery.

Construction Hardware

Post anchors, anchor bolts, construction stakes, fasteners, and structural fittings for building applications.

Forged Components

High-strength forged parts with excellent durability and resistance to wear, ideal for heavy-load applications.

Laser Cut Parts

Precision-cut metal components using advanced laser tube and plate cutting machines for tight tolerances.

CNC Machined Parts

Complex geometries and high-precision components produced on advanced CNC machining centers.

Welded Assemblies

Fully assembled structures and frames using Panasonic welding robots for consistent, high-quality welds.

Stamped Components

High-volume production of metal stampings using progressive die technology for efficiency and consistency.

Heat Treated Parts

Components processed in Ipsen heat treatment furnaces for enhanced hardness, strength, and wear resistance.

Custom Fabrications

End-to-end fabrication services from design to delivery, supporting OEM and ODM projects.

Our Manufacturing Strength

Advanced CNC Machining

Precision machining center ensures tight tolerances and high repeatability for complex parts.

Ipsen Heat Treatment

Controlled atmosphere furnaces for uniform hardness and improved material properties.

Laser Cutting

High-precision laser tube and plate cutting for clean edges and minimal waste.

Robotic Welding

Panasonic welding robots eliminate human error and ensure consistent, high-quality welds.

Integrated Production Line

Forging: High-strength components with superior grain structure.
Stamping: Progressive dies for high-volume, consistent output.
Spraying: Surface treatments that meet international coating standards.
Automation: Smart factory integration for efficiency and traceability.

Quality Assurance

At DNL, quality is not just a department—it's embedded in every process. From raw material inspection to final packaging, we maintain the highest standards to ensure reliability and performance.

Inspection & Testing

Comprehensive dimensional checks, material testing, and non-destructive evaluation to verify compliance.

Certified Standards

Adherence to international quality systems with documented processes and continuous improvement.

Process Control

Real-time monitoring and data analytics to maintain consistency and prevent defects.

Frequently Asked Questions

What materials do you work with?

We process carbon steel, alloy steel, stainless steel, aluminum, and other engineering metals based on customer requirements.

Do you offer custom design and prototyping?

Yes, our engineering team supports full OEM/ODM services including 3D modeling, prototype development, and design for manufacturability.

What is your production capacity?

With automated lines and flexible scheduling, we can scale from small batches to high-volume production runs efficiently.

How do you ensure product quality?

Through a combination of in-process inspections, final QA checks, material certifications, and traceability systems.

What industries do you serve?

Our parts are used in construction, agriculture, transportation, machinery, and industrial equipment sectors worldwide.

Get in Touch

Phone

+86-532-86676656

+86-532-86676659

Email

info@dnl.com

Location

1563 Wangsha Road, Chengyang District, Qingdao, China

Visit Official Website to Contact

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Precision Hardware & Mechanical Parts Manufacturing