Approvals
Our Approvals are available in PDF format here:
Aerospace industry
- Airbus Deutschland - german
- Airbus UK - english
- Airbus France (EADS/Matra) - Witten, Krefeld - english
- BAE SYSTEMS - english
- Bombardier Aerospace - english
- Eurocopter - german
- GKN Aerospace - english
- Hawker Beechcraft - english
- Liebherr-Aerospace Lindenberg GmbH - german
- Messier-Dowty - english
- Nadcap (AC7003) Heat Treating - english
- Raytheon Aircraft - english
- Rolls-Royce - english
- ST Aerospace Engineering Pte Ltd Singapore - english
- Westland Helicopters - Hagen - english
- Westland Helicopters - Siegen - english
Pressure Equipment
- Pressure Equipment Directive AD2000W0 / DGRL 97/23/EG - german, english
- Pressure Equipment Directive DGRL 97/23/EG - Witten/Krefeld - english
- AD2000 W0 - Witten/Krefeld - english
Conformity certificates
- Conformity certificate - products for metal construction acc. to technical standard 4.4.1 - Witten, Krefeld - german
- Conformity certificate - stainless, acid and heat-resistant steels - Witten, Krefeld - german
- Conformity certificate - stainless, acid and heat-resistant steels - construction supervision approval Z-30.3-6 - Siegen, Hagen - german
- Certificate of the european community (EC) for the internal control of the production - EN 10088-9 - CE-sign - german
General company approvals
- American Bureau of Shipping - Witten, Krefeld - english
- Bureau Veritas - Witten - english
- Bureau Veritas - Krefeld - english
- Bureau Veritas - Siegen, Hagen - english
- Class NK - english
- Det Norske Veritas - Witten - Steel forgings - english
- Det Norske Veritas - Witten - Steel making & rolled steel products - english
- Det Norske Veritas - Siegen
- Det Norske Veritas - Krefeld - english
- Deutsche Bahn AG - interim confirmation - Witten, Krefeld - german
- Germanischer Lloyd - Witten, Krefeld - hot rolled and forged bar steel - german, english
- Germanischer Lloyd - Siegen - solid crude steel and semi-finished products - german, english
- Germanischer Lloyd - Siegen - bar steel and semi-finished products - german, english
- Germanischer Lloyd - Hagen - wire rod - german, english
- Nuclear power plant - approval acc. to KTA 1401 - english
- Nuclear power plant - approval acc. to KTA 3201.1 Kap 2.4 - Witten, Krefeld - english
- Lisega AG - Witten, Siegen, Hagen - german, english
- Lloyd's Register - EN 10025-1 - Witten - english
- Lloyd's Register - Witten - Steelmaking and bars - english
- Lloyd's Register - Witten - Forgings - english
- Lloyd's Register - Siegen - Steelmaking and bars - english
- Lloyd's Register - Krefeld - Forgings - english
- RINA - Steel Forgings - english
Approvals by suppliers
- Supplier Approval of the Schaeffler group (FAG, INA und LUK)
(For the DEW plant Witten) - Supplier Approval of the Schaeffler group (FAG, INA und LUK)
(For the DEW plant Siegen)
Duplex steel according to Norsok M-650
- Qualification Test Record (QTR) N° 01 - Production route Siegen
(Approval for UNS S 31803 bar material according to Norsok M-650 Rev. 3) - Qualification Test Record (QTR) N° 02 - Production route Witten
(Approval for UNS S 31803 bar material according to Norsok M-650 Rev. 3)

