Quality Management System ISO 9002, IQNet and AENOR, Spain
Registered Firm Certificate, AENOR, Spain Burglar resistance; DD ENV 1627:1999 Ranked=3
(ACORAZADA MODEL)
Burglar resistance; DD ENV 1627:1999 Ranked 2
(ARIAN SERIES)
Hermetic for air, water and wind; ATM, France
Thermal isolation – CEBTP, France, the final result is:
Umoyen=1.61 W/m2.K
Acoustic isolation – ATM , France, the final result is
Rw= 31 (-2;-4)dB

Certificates

Hygienic certificate – National Institute of Hygiene,
Poland
Technical Approval - ITB, Poland; the doors are accepted for construction use as exterior and interior
entrance doors
Corrosion – ITB, Poland
Acoustic isolation – ITB, PSBC, Poland; the final result
is Rw= 31-32 dB during tests and by the rules PN- 87/B-02151/03 Rw=27 dB
General functions, use, resistance, hermetic , flat of leaf, of edges, etc., ITB PCBC, Poland
Security certificate – MABISZ, Hungary

Patents & utility models

More than 20 international patents clearly show THT’s focus on R&D. Our product development team strives for excellence, usability, innovation and safety. Spain, France, United Kingdom, Germany, Netherlands, Portugal, Belgium, Switzerland, Italy, Denmark, Finland, Poland, Sweden, Austria, Ireland, Israel.