Certificates

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ISO 9001

• DIN EN ISO 9001 certificate (English):
  iso_9001_e.pdf
• DIN EN ISO 9001 certificate (German):
  iso_9001_d.pdf

Pre-qualified Company

• Certificate about Pre-qualification for '312.03 - Tunnelausstattungen':
  prae_vob.pdf

AMCA

• AMCA certified test laboratory:
  amca_certified_lab.pdf

Welding

• Certification as recognised welding workshop acc. to ISO 3834-2 (English):
  iso_3834_2_e.pdf
• Certification as recognised welding workshop acc. to ISO 3834-2 (German):
  iso_3834_2_d.pdf
• Certification to weld military devices according DIN 2303 (English):
  gl_wehrtechnische_geraete_e.pdf
• Certification to weld military devices according DIN 2303 (German):
  gl_wehrtechnische_geraete.pdf
• Dye penetration testing certificate acc. to EN 437:
  dye_penetration_en_473_1.pdf
• Dye penetration testing certificate acc. to EN 437:
  dye_penetration_en_473_2.pdf

Miscellaneous

• Certificate of quality management acc. to KTA 1401 (German):
  kta_1401.pdf
• Certificate of quality management acc. to KTA 1401 (English):
  kta_1401_e.pdf
• Type approval by LR of axial fans for marine and offshore use 98/20027:
  marine_and_offshore_type_approval_98_20027.pdf
• Type approval by BV of antispark axial fans for steel ships and offshore units:
  type_approval_antispark_axial.pdf
• Type approval for fire dampers acc. to SOLAS 1974:
  type_approval_solas_1974.pdf
• GOST certificate for Witt & Sohn products:
  gost.pdf
• RTN certificate for Witt & Sohn products:
  rtn.pdf
• GL rules for ship technology Approval Certificate (explosion protected axial fans):
  gl_rules_approval_axial.pdf