SIO supplies the railcar industry with products with high appearance quality, man-machine interface, specifically intended to train and TGV panels and cars :

  • molded or machined, painted, screen-printed, engraved plastic parts
  • micro-sheet metal parts and precision machined parts with surface-treatment, painting, screen-printing
  • retro-lit parts : optical assemblies, keys and controls, laser engraved bezels
  • optical, mechanical and electro-mechanical sub-assemblies


  • 3
  • 2
  • 1

Special Assemblies 

Functional sub-assemblies


Precision screen-printing


Precision painting

Laser engraving

Precision bonding