Modular concrete fence panels (free 3D model OBJ)

Concrete industrial fence panels set (free low-poly 3D models) in Wavefront OBJ format (obj+mtl).
Absolutely necessary thing for your industrial, warehousing or construction site 

Updated 2015-06-26: several corrections of meshes, two new panel types, better UV mapping with new templates.

Attached ZIP archive contains 12 low-poly models of panels with various sizes and visual patters, carefully modeled from scratch in Blender (using official reference sheets) and UV mapped. Separate materials for front, sides and back. Measurement unit in OBJ file is meters.
Poser importing tip: for proper scaling, uncheck 'Percent of standard figure size' in 'Import Options' dialog and set prop scale to 38.15% after import completes.

You are free to use or modify this model as you see fit for use in your own renders, and it's free to use for both commercial and non-commercial renders. You may not redistribute or resell this object, or any derivative of this object, by itself or as part of another package. Link to this page is highly appreciated, but not required.