Steyls Ramen en Deuren fabricates aluminium fire doorsets under the Hydro Building Systems SAPA Thermo 74 system at Hasselt in Limburg, holding BCCA certificate BC1-581-26018 under notified body 0749 at EI₁ 30 to EN 16034-1 and EI₁ 60 to EN 16034-2, valid to the end of 2026.