How i can modify the standar url with sobi2 extension: "mostrar-sobi"

See here please: puertaachina.com/en/mostrar-sobi/servicios-services/prueba3

Thanks.

Hi,
The "mostrar-sobi" part in your URL is most likely the menu item name. You can customize it using our SOBI extension parameters accessible from Manage Extensions page in JoomSEF. There on the Common tab set "Custom menu title" field.