Optimum quality management is standard for us. That's why we have acquired various certifications for our product range. Meticulous quality control and quality assurance for just-in-time solutions - those are the everyday tasks facing our team responsible for the compliance with our high quality standards and their strict observance.

Friedrich Graepel AG in Löningen is certified according to

ISO 9001:2008
ISO 14001:2004
ISO/TS 16949:2009
Certified Welding Company GSI SLV

Graepel-STUV GmbH in Seehausen is certified according to DIN EN ISO 9001:2008 and DIN EN ISO 14001:2004.Optimum quality management is our standard. This is why it goes without saying that we are certified according to DIN EN ISO 9001 and have surveillance audits on a regular basis. Our environmental management is certified according to DIN EN ISO 14001 and is monitored regularly.

In addition, the accreditations below are evidence of our highly specialist expertise in welding technology:

• DIN 18800 Part 7, Class D manufacturer's certificate for welding of steel buildings
• DIN EN 15085 Part 2 certificate of qualification to weld rail vehicles and rail vehicle components, certification level CL1 
• DIN V 4113-2 certificate of qualification to weld load-bearing structures of aluminium, class C
• DIN EN ISO 3834-2 Fusion Welding of Metallic Materials
• Certified Welding Company GSI SLV (quality mark)
• EN 1090-2 Supporting steel members and
• EN 1090-3 Supporting aluminum members

For our in-house galvanizing shop in Seehausen, we have received the certification of working in compliance with DASt Directive 022 – Design-Specific Galvanizing/Galvanizable Designs.