Aluminium and its alloys; Brass alloys; Common metals and their alloys including stainless steel; Framework of metal for building; Metal couplings for use with hydraulic and pneumatic systems; Metal profiles made of steel, iron, nickel, titanium and other metals and their alloys; Rails of metal; Stainless steel; Steels in the form of sheets, plates, foils and reels; Titanium and its alloys