Burnishing is a chemical surface treatment to which small metal parts are subjected to give them a black or an aesthetically pleasing dark colour while being more oxidation resistant.

Burnishing is carried out on steel, by immersing the carefully degreased object, which has been cleaned from any imperfections, in a bath of selected substances which are correctly dosed according to the type of metal and the desired colour.

The pieces can be finally assembled by us on request and delivered finished to the customer.

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