Certificate No. 961224 (Kontrollradet, Norway) for the production of reinforcing bars Ø 10-40 mm В500NВ according to the requirements of NS 3576-2: 2012 and В500NС according to the requirements of NS 3576-3: 2012 and reinforcing wire Ø 6-12 mm B500NA according to the requirements of NS 3576- 1: 2005