The 6th Doors and Windows Technology International Exhibition will be held in Tehran international permanent fairground on January 23-26, IRNA reported on Wednesday. The exposition is supported by Iran Trade Promotion Organization (ITPO), Iran International Exhibition Co. (IIEC), Association of UPVC Windows & Doors System Manufacturers, and Iran UPVC Association. Iran as well as eight foreign countries will showcase their latest products in this exhibition including all types of doors and windows for buildings, houses, garages, gardens, made of different materials, e.g. wood, MDF, HDF, aluminum, composite, PVC.