Delicate cleaning system using bicarbonate, white flour, etc.. We use this system ( low pressure air, from 1 to 3 atmosphere/BAR) on very delicate surfaces to keep the ancient patina/coating (Sant’Andrea’s church in Milan; Palazzo xxxxxx in Modena; Duomo of Rovato)
In total there are 105 pictures in the categories.
Works 
)
)
)
)
)
)
)
)
