uPVC windows and doors 3d models Posted on 24/01/2012 by alexnjoy | Category: Architectural elements Set of 7 uPVC window and door 3d models for 3d Studio Max architectural visualizations, modeling and rendering. Free for download. Name: uPVC windows and doors 3d models. 3D Format: .max – 3ds Max scene file with models. Textures: not included. Tags: architectural elements, doors, windows.