CERTIFICATES

Quality management system – ISO 9001

NB Čelik d.o.o. holds a quality management system certificate in accordance with the requirements of the ISO 9001 standard. Compliance with standard requirements was confirmed by the certification body Isoqar Ltd.

Quality system for the fusion welding of metallic materials – ISO 3834-3

NB Čelik d.o.o. meets the standard quality requirements pertaining to fusion welding of metallic materials in accordance with the standard ISO 3834-3. Compliance with standard requirements was confirmed by the certification body Zavod-cert.