Trade name: Load bearing bold stair WE1 and WF2 System "Thumm"
Product family: Prefabricated stair kits
Applicant: Thumm Treppen GmbH In der Au 14 72622 Nürtingen
ETA
Issued on 05/03/2026
Issued on 27/04/2015
valid from 26/04/2010 until 26/04/2015
