This metal occurs naturally in the form of oxide, together with the oxides of iron, manganese, and calcium. Pure tungsten powder is obtained by first isolating the tungstic oxide and then reducing ...

The facade defines the first impression of a building. Is it worth taking a closer look? Are there elements that set it apart from its (built) surroundings? Even small design accents can make the ...

The side of the metal sheet opposite the forming tool (punch) first receives a form-stable, white powder coating. The subsequent application of a colored inkjet print is also elastic and is not ...