In category URL datetime data

[flaterik]

Hi people
see my demo site http://www.trendsrl.net/shop/

If you navigate MATERIALE DI CONSUMO -> BOBINE BASE SOLVENTE E UV the url of the site become shop/1081/materiali-di-consumo/bobine-base-solvente-e-uv2012-06-21-10-27-221678450013.html

Why ther's also "2012-06-21-10-27-221678450013" , how to remove it?