Steel; Aluminium and its alloys; Chrome iron; Elbows of metal for pipes including those from alloy steel and titanium; Iron and steel for use as raw materials for automobile parts; Iron slabs; Metal gas dampers for hydraulic use in automotive and aviation manufacturing; Metal hose fittings; Metal nuts; Metal pipe couplings and joints; Metal welding rods; Screw rings of metal; Screws of metal; Structural joint connectors of metal; Welding wire