experience, tradition, quality
Bleaching fringes or frons at the edges of carpets, carpet cleaning is one of the services, even though they
subsequently washed after washing the carpet, and treated in a completely different way.
If they are in good condition and not damaged, they can whiten in order to get the white color, of course,
if they were white. Otherwise, if you have colored or damaged they are just washed with mild detergent and rinse,
and sometimes just vacuum cleaned.