GSK (pdf)
Lioyd's Register - Approved Manufacturer of Iron Castings (pdf)
Lioyd's Register - ISO 45001:2018 (pdf)
Lioyd's Register - ISO 50001:2018 (pdf)
Lioyd's Register - ISO 14001:2015 (pdf)
Lioyd's Register - ISO 9001:2015 (pdf)
DVGW Zertifikat - Ductile iron pipe fittings with flanges for the drinking water supply (DN 40 - DN 600) (pdf)
DVGW Zertifikat - Ductile iron pipe fittings with flanges for the drinking water supply (DN 700 - DN 1000) (pdf)
