Work on lathes, milling or drilling machines it is possible to classify between the engineering craft, as well as various methods of welding, the implementation of surface treatments metals, press work, tool-room activities, brusičství or well-known art and machine forging.

Activity: - execution of constructions - binders - bulk materials - construction chemistry - masonry materials, ceilings - thermal insulation systems - roofs, chimneys - isolation - windows, door frames - plasterboard