TQV Cert. No: Q070BF0541D
Naziv tvrtke: GTR d.o.o.
Opseg: Provision of construction works services, manufacture of PVC and Al joinery and production of flat panel furniture.
Pružanje usluga u građevinarstvu, izrada PVC i Al stolarije te pločastog namještaja.
Standard: ISO 9001:2015
Vrijeme valjanosti: 22 February, 2029