Quality
TTP-Yhtiöt Oy applies ISO 9001 quality system certified by Inspecta Sertifionti Oy and a certified ISO 3834-2 welding system. Certificated (TÜV Nord) DIN 18800 Class E.
Moreover, TTP-Yhtiöt Oy has been awarded the right to use the FI mark as an indication of being supervised by an inspection body approved as per RakMK instruction B7 with respect to grades AA...B in the manufacturing of load-bearing steel structures.
> ISO 9001, ISO 3834-2 -certification
> Steelwork manufacturing certification







