After each production it’s necessary to start a process of industrial washing of the pieces. In this case we offer many solutions. The starting point is an industrial washing including two different machines. One is used for the washing of small details, especially for materials such as copper, brass, aluminum, and bronze that require the use of special liquid mixtures according to the material and to the specific needs of the customer. In the second machine larger pieces, especially in iron and stainless steel, are washed; for these washings we use powder mixtures that ensure an optimal cleaning. Moreover, downstream of these two processes, it’s possible to perform a further polishing on the finished piece. This process takes place with the use of a big burnishing machine in which a powder of vegetable origin is put, together with the fasteners. Working like this we can guarantee a better cleaning and surface gloss of the product.