Certifications & Quality
Certifications & Quality
At OTK Precision Strips B.V., quality is the foundation of everything we produce. Every stainless-steel precision strip, slit coil, hardened & tempered strip, and precision sheet is manufactured under strict European and international standards to ensure consistency, safety, and high performance across demanding industries.Our complete quality framework covers raw-material sourcing, in-process control, product verification, surface protection, and final inspection. All materials are fully traceable and supplied with the correct documentation.
• ISO 9001 – Quality Management
Ensures stable production processes, controlled tolerances, and consistently reliable product performance across all stainless-steel precision strips and coils.• ISO 14001 – Environmental Management
Guarantees responsible manufacturing, waste reduction, and full compliance with EU environmental regulations.• ISO 45001 – Occupational Health & Safety
Ensures safe working conditions, controlled processing environments, and responsible handling of materials.• ISO 17025 – Laboratory Calibration & Testing
Confirms accurate mechanical and chemical testing. All certified material data is verified through calibrated laboratories.
✔ Material Standards for Precision Strips
• EN 10088 – Stainless Steel Grades
Defines chemical composition and mechanical property standards for all stainless-steel grades we supply.• EN 10151 – Stainless Spring Steel Strip
Standard for precision spring steel, hardened & tempered strips, and high-elasticity applications.• EN 10204 – Material Certificates (3.1 & 2.2)
3.1 Certificate: Independent laboratory-verified chemical and mechanical tests
2.2 Certificate: Factory inspection and material declaration
(Available for all precision strips, coils, and sheets.)• ASTM / AISI Standards
International specifications for grade equivalents such as 301, 304, 316, 420, 430, and more.
✔ Compliance & Safety Standards
• RoHS Compliance
Materials free from restricted substances such as lead, mercury, cadmium, and other hazardous elements—critical for electronics and automotive industries.• REACH Compliance
All products are fully compliant with EU chemical safety legislation and supplied free from SVHC substances.• Conflict-Free Material Declaration
Sourcing aligns with responsible and ethical material supply chains.
✔ Traceability, Engraving & Batch Identification
To support full accountability and documentation, all materials can be supplied with:
— Coil engraving or laser marking
— Batch/heat number identification
— Production lot traceability
— Certificate linkage to each shipmentThis ensures complete tracking from raw material to finished product — a requirement for sectors such as automotive, aerospace, medical, and precision engineering.
✔ Edge Dressing & Edge Quality Control
We offer strict edge-quality processes as part of our certified production standards:
• Round edge / safety edge
• Deburred edge
• Slit edge
• Fully dressed edge
• Burr-controlled precision finishingThese ensure maximum safety, improved winding performance, and enhanced consistency for stamping, forming, spring manufacturing, and banding applications.
✔ Surface Integrity & Protection (Quality-Controlled)
While coatings and advanced polymer systems are part of our technical capabilities, the following surface-protection methods are included in our quality and handling standards:
• Protective films to prevent scratches during transport
• Anti-corrosion treatments where required
• Controlled surface roughness and finish inspection
• Clean handling to ensure contamination-free deliveryAll processes follow strict European quality requirements to maintain surface integrity and mechanical performance.
✔ Industry-Specific Approvals
Our precision strips and coils meet the quality expectations of:
— Automotive & mobility systems
— Engineering & tooling manufacturers
— Electronics & electrical component producers
— Industrial banding systems
— Precision spring & stamping industries
— Chemical & marine corrosion-resistant applications
✔ Our Promise
Every product leaving OTK Precision Strips B.V. is backed by:
✓ Certified quality systems
✓ Verified material composition
✓ Controlled tolerances
✓ Documented traceability
✓ Professional packaging & surface protectionWe guarantee reliable performance and consistent results, shipment after shipment.