Comprehensive service
engineering and manufacturing
At DUSER ENGINEERING S.L., we specialize in metal fabrication, focusing on the design, manufacturing, and assembly of metal structures in accordance with the highest technical and quality standards.
With over 15 years of experience, we have built a solid portfolio of industrial clients who trust our technical capabilities, operational flexibility, and commitment to excellence.
Our strengths
Services
Advanced Metal Fabrication
We develop solutions in heavy, medium, and light metalwork, supported by high-performance infrastructure, specialized machinery, and highly qualified technical staff. We adapt to the requirements of each project, ensuring precision, reliability, and on-time delivery.
Certified Welding
We apply certified welding procedures according to UNE EN and ASME standards, and we employ certified welders. We also carry out non-destructive testing (NDT) with personnel qualified to Level II and III, ensuring quality and traceability in every critical joint.
Top-Level Certifications
We hold certifications that endorse our management system and technical competence:
- UNE EN ISO 9001 (Quality Management)
- ISO 14001 (Environmental Management)
- UNE EN ISO 3834 (Quality Requirements for Fusion Welding)
- UNE EN 1090 (Execution of Steel Structures and CE Marking)
These accreditations enable us to undertake projects that demand the highest levels of technical and regulatory rigor.
We serve industrial sectors that require high levels of precision, structural reliability, and full documentation traceability
SECTORS
Integrated Solutions
Expert Technical Consulting
At DUSER ENGINEERING, we offer a comprehensive service covering engineering and manufacturing, stress-relieving treatments (vibratory or thermal), precision machining, and surface finishing.
design, manufacturing, and assembly
of metal structures
solutions in heavy, medium, and light metalwork
Certified quality
Certifications
At DUSER ENGINEERING, we are firmly committed to certified quality as the foundation of our industrial activity. We operate under an integrated management system endorsed by official bodies, ensuring strict compliance with regulatory, technical, and environmental requirements across all our processes.
The following certifications support our ability to execute complex projects that demand the highest standards in quality, traceability, and structural safety—especially in sectors where technical reliability is critical
✅ UNE-EN ISO 9001 – Quality Management System
This standard certifies that DUSER ENGINEERING operates under a quality management system focused on continuous improvement, systematic process control, and customer satisfaction. It encompasses the entire workflow from raw material reception to final product delivery, including in-process controls, documentation management, and non-conformity tracking.
🌱 UNE-EN ISO 14001 – Environmental Management System
The ISO 14001 environmental certification ensures that our production processes are aligned with pollution prevention, responsible resource usage, and full compliance with current environmental legislation. Sustainability criteria are integrated into our daily operations, minimizing the environmental footprint of metal fabrication.
🔩 UNE-EN ISO 3834 – Quality Requirements for Fusion Welding Processes
This welding-specific certification confirms that our procedures, personnel, equipment, and inspections meet the rigorous technical standards required for welded joints. It covers welder and procedure qualifications (WPQR, WPS) as well as supervision and quality control of welds in accordance with international norms.
🏗 UNE-EN 1090 – Execution of Steel Structures and CE Marking
Our EN 1090 certification authorizes us to manufacture structural steel components with CE marking, in compliance with the Construction Products Regulation (CPR) and structural safety standards.
We are qualified to execute structures up to EXC3 class, enabling us to work on projects with high load demands and structural responsibility, including industrial facilities, platforms, cranes, supports, and critical structural components.
📋 Non-Destructive Testing (NDT) – Level II & III Qualified Personnel
We employ and collaborate with certified personnel qualified to Levels II and III according to ISO 9712 for the execution of non-destructive testing (NDT), including:
- Liquid Penetrant Testing (PT)
- Magnetic Particle Testing (MT)
- Ultrasonic Testing (UT)
- Visual Testing (VT)
These tests ensure the integrity of welds and manufactured parts, allowing the detection of internal or surface defects without altering the product.
🧰 Traceability Control and Technical Documentation
All our manufactured products are delivered with complete technical documentation, including:
- Welding and assembly plans
- Material certificates
- Welding records
- Dimensional control reports
- Painting protocols and final inspection reports
This guarantees full traceability for our clients—especially critical in regulated industries.
