Surface-
engineering
engineering
Drainage-
machines
machines
We want to impress you
Our certifications set us apart and underline our skills and abilities.
DIN EN ISO 3834-2
DVS SLV Duisburg
Welding quality requirement according to DIN EN ISO 3834-2
Valid: 9 July 2021 - 8 July 2024
Welding quality requirement according to DIN EN ISO 3834-2
Valid: 9 July 2021 - 8 July 2024
EWE Climate Certificate
CO2-neutral natural gas climate proValid: 1 January 2019 - 1 January 2021
TÜV Nord Climate Change Standard
Calculation & Verification of Carboon Footprints & Carbon NeutralityValid: 1 January 2018 - 31 December 2019
DVS SLV Duisburg
Welding of steel work in accordance with DIN EN 1090-2
Valid: 15 April 2015 - 20 April 2025
Welding of steel work in accordance with DIN EN 1090-2
Valid: 15 April 2015 - 20 April 2025
DVS ZERT Düsseldorf
Structural components and kits for steel structures
Valid: 21 April 2015 - 20 April 2025
Structural components and kits for steel structures
Valid: 21 April 2015 - 20 April 2025
DVS ZERT Düsseldorf
Welding of rolling stock and vehicle parts in accordance with EN 15085-2
Valid: 15 June 2022 - 30 May 2025
Welding of rolling stock and vehicle parts in accordance with EN 15085-2
Valid: 15 June 2022 - 30 May 2025
ZDH ZERT Main certifcate DIN EN ISO 9001:2015
Valid: 17 March 2022 - 16 March 2025
ZDH ZERT Hüntelmann Maschinen- und Stahlbau GmbH & Co. KG nach DIN EN ISO 9001:2015
Valid: 17 March 2022 - 16 March 2025
Do you want to know in which other areas we are certified?
Check out the certifications of our Oberflächentechnik GmbH.