CERTIFICATES

Certificates

DVGW 301 Group W1 (German Technical and Scientific Association for Gas and Water)

DVGW 302 Group GN 1 (German Technical and Scientific Association for Gas and Water)

Quality assurance channel build RAL-GZ 961

QGS - S 1, S 2, S 3

Pre-Qualification VOB (German Contract Procedures for Construction Work)

Chamber of Commerce in Berlin

Chamber of Industry and Commerce in Berlin

Certificate of Award