Scouring

Cream cleaners or scouring powder is a mild abrasive that cleans surfaces without scratching.

Manual:

For the cream: a drop of cream on the surface to be cleaned or on a damp sponge.
Rub moderately.
Rinse with clear water and wipe with a mop or cloth to shine.
Suitable for cleaning surfaces which can enter into contact with foodstuffs.

For the powder: Sprinkle directly on the surface to be cleaned.
Rub with a damp sponge.
Rinse with clear water and wipe with a clean dry cloth.