Common metals, unwrought and semi-worked, and their alloys for further manufacture; steel, in particular quality and stainless steel, tool steel, high-speed steel, machining steel, special steel, cold compression steel; bi-metals in the nature of a sheet of a high speed alloy bonded to a sheet of backing steel; powder-metallurgic manufactured steel; nickel and nickel alloys; cobalt alloys; titanium and titanium alloys; aluminum and aluminum alloys; special stainless steel; milled, forged, pre...