The history of SIAM -> http://pesadosargentinos.blogspot.com.ar/2014/08/siam.html
The models made under licence ->
http://pesadosargentinos.blogspot.com.ar/2015/06/siam-wabco-440.html
http://pesadosargentinos.blogspot.com.ar/2015/06/siam-wabco-444.html