| EN 1090-1 EXC3 | Steel and aluminium structure manufacturing |
| ZERTIFIKAT 2451-CPR-EN1090-2014.1803.003 |
| EN 1090-2 EXC3 | Steel and aluminium structure manufacturing – technical requirements for steel structures |
| SLVHa-EN1090-2.00119.2013 |
| EN ISO 9001:2015 | Quality management system |
| Q 0951-3 |
| EN15085-2 CL1 | Railway applications – Welding of rail vehicles and their components. Part 2: requirements for quality and certification of welders |
| ZE-16083-01-00-EN15085-2015.0335.005 |
| DIN EN ISO 3834-2 | Quality requirements for fusion welding of metallic materials. Part 2: Comprehensive quality requirements |
| 2018 700 0183/3834 |